wiktionarypar Periodic Graph Periodic graph periodic graph Periodic graphs periodic graphs Periodic graph can mean Periodic graph crystallography or crystal net , a Euclidean graph representing the atomic or molecular structure of a crystal. Periodic graph geometry , a Euclidean graph preserved under a lattice of translations. Periodic graph graph theory , a graph that is periodic with respect to a graph theoretic operator disambig ... more details
The Periodic Table may refer to The periodic table of chemical elements. The Periodic table of shapes periodic table of mathematical shapes. It is also the title of books about the table For the book by Primo Levi, see The Periodic Table book The Periodic Table book . For the book by Simon Basher, see The Periodic Table Simon Basher book The Periodic Table Simon Basher book . disambig ... more details
Periodic abstinence may refer to The use of fertility awareness as birth control Following the Roman Catholic Church s teachings on natural family planning disambig ... more details
Unreferenced date July 2009 In mathematics , a periodic sequence is a sequence for which the same terms are repeated over and over a sub 1 sub , a sub 2 sub , ..., a sub p sub , a sub 1 sub , a sub 2 sub , ..., a sub p sub , a sub 1 sub , a sub 2 sub , ..., a sub p sub , ... The number p of repeated terms is called the period . Definition A periodic sequence is a sequence a sub 1 sub , a sub 2 sub , a sub 3 sub , ... satisfying a sub n p sub a sub n sub for all values of n . If we regard a sequence as a function mathematics function whose domain is the set of natural number s, then a periodic sequence is simply a special type of periodic function . Examples The sequence of digits in the decimal expansion of 1 7 is periodic with period six 1 7 0 . 1 4 2 8 5 7 1 4 2 8 5 7 1 4 2 8 5 7 ... More generally, the sequence of digits in the decimal expansion of any rational number is eventually periodic see below . The sequence of powers of &minus 1 is periodic with period two &minus 1, 1, &minus 1, 1, &minus 1, 1, ... More generally, the sequence of powers of any root of unity is periodic. The same holds true for the powers of any element of finite order group theory order in a group mathematics group . A periodic point for a function ... math is a periodic sequence. Periodic points are important in the theory of dynamical systems . Generalizations A sequence is eventually periodic if it can be made periodic by dropping some finite number ... is eventually periodic 1 56 0 . 0 1 7 8 5 7 1 4 2 8 5 7 1 4 2 8 5 7 1 4 2 ... A sequence is asymptotically periodic if its terms approach those of a periodic ... periodic if there exists a periodic sequence a sub 1 sub , a sub 2 sub , a sub ... periodic, since its terms approach those of the periodic sequence 0, 1, 0, 1, 0, 1, .... DEFAULTSORT Periodic Sequence Category Sequences and series fr Suite p riodique ... more details
Wikify date September 2010 ref book on ACCOUNTING, Eleventh Edition by Robert F. Meigs, Jan R. Williams, Susan F. Haka & Mark S. Bettner Published by MC Graw Hill ref Periodic inventory is a system of inventory in which updates are made on a periodic basis. This differs from perpetual inventory systems, where updates are made as seen fit. In Periodic Inventory System no effort is made to keep up to date records of either the inventory or the cost of goods sold. Instead, these amounts are determined only periodically usually at the end of each year. As the The foundation of the periodic inventory system is the taking of a complete physical inventory at year end. This physical count determines the amount of inventory appearing in the balance sheet. The cost of goods sold for the entire year then is determined by a Short Computation. References reflist DEFAULTSORT Periodic Inventory Category Inventory ... more details
Distinguish2 periodic mapping, a mapping whose nth iterate is the identity see periodic point In mathematics , a periodic function is a function mathematics function that repeats its values in regular ... intervals of length 2 &pi radians . Periodic functions are used throughout science to describe oscillation s, wave s, and other phenomena that exhibit Frequency periodicity . Any function which is not periodic is called aperiodic . Image Periodic function illustration.svg thumb right 300px An illustration of a periodic function with period math P. math Definition A function f is said to be periodic ... . Geometrically, a periodic function can be defined as a function whose graph exhibits translational symmetry . Specifically, a function f is periodic with period P if the graph of f is invariant ... of P . This definition of periodic can be extended to other geometric shapes and patterns, such as periodic tessellation s of the plane. A function that is not periodic is called aperiodic . Examples ..., the sine function is periodic with period 2 &pi , since math sin x 2 pi sin x , math for all ... show periodic behaviour. Periodic motion is motion in which the position s of the system are expressible as periodic functions, all with the same period. For a function on the real number s or on the integer ... particular portion, repeated at regular intervals. A simple example of a periodic function is the function ... 300px right thumb A plot of f x sin x and g x cos x both functions are periodic with period 2&pi . The trigonometric function s sine and cosine are common periodic functions, with period 2 see the figure on the right . The subject of Fourier series investigates the idea that an arbitrary periodic function ..., some exotic functions, for example the Dirichlet function , are also periodic in the case of Dirichlet ... than zero if If a function f is periodic with period P , then for all x in the domain of f and all ... constant, is periodic with period P a . For example, f x sin x has period 2 , therefore sin 5 x ... more details
about the mathematical concept groups in the chemical periodic table Group periodic table In group theory , a periodic group or a torsion group is a group mathematics group in which each element mathematics element has finite set finite order group theory order . All finite groups are periodic. The concept of a periodic group should not be confused with that of a cyclic group , although all finite cyclic groups are periodic. The exponent of a periodic group G is the least common multiple , if it exists, of the orders of the elements of G . Any finite group has an exponent it is a divisor of G . Burnside s problem is a classical question, which deals with the relationship between periodic groups and finite group s, if we assume only that G is a finitely generated group . The question is whether specifying an exponent forces finiteness to which the answer is no , in general . Examples of infinite periodic groups include the additive group of the ring of polynomials over a finite field, and the quotient group of the rationals by the integers, as well as their direct summands, the Pr fer group s. Another example is the union of all dihedral group s. None of these examples has a finite generating set, and any periodic linear group with a finite generating set is finite. Explicit examples of finitely generated infinite periodic groups were constructed by Golod, based on Golod Shafarevich theorem joint work with Shafarevich , and by Aleshin and Grigorchuk using automata theory automata . See also Torsion algebra Torsion Torsion subgroup Jordan Schur theorem Golod Shafarevich theorem References E. S. Golod, On nil algebras and finitely approximable p groups, Izv. Akad. Nauk SSSR Ser. Mat. 28 1964 273 276. N. V. Aleshin, Finite automata and the Burnside problem for periodic groups, Russian Mat. Zametki 11 1972 , 319 328. R. I. Grigorchuk, On Burnside s problem on periodic groups ... periodic groups and http planetmath.org encyclopedia Exponent.html exponent . Category Group theory ... more details
In mathematics , in the study of iterated function s and dynamical system s, a periodic point of a function mathematics function is a point which the system returns to after a certain number of function iterations or a certain amount of time. Iterated functions Given an endomorphism f on a set mathematics set X math f X to X math a point x in X is called periodic point if there exists an n so that math f n x x math where math f n math is the n th iterated function iterate of f . The smallest positive integer n satisfying the above is called the prime period or least period of the point x . If every point in X is a periodic point with the same period n , then f is called periodic with period n . If f is a diffeomorphism of a differentiable manifold , so that the derivative math f n prime math is defined, then one says that a periodic point is hyperbolic if math f n prime ne 1, math and that it is attractive if math f n prime 1 math and it is repelling if math f n prime 1. math If the dimension of the stable manifold of a periodic point or fixed point is zero, the point is called a source if the dimension of its unstable manifold is zero, it is called a sink and if both the stable and unstable manifold have nonzero dimension, it is called a saddle or saddle point . Examples A period one point is called a fixed point mathematics fixed point . Dynamical system Given a real global dynamical system R , X , with X the Phase space dynamical system phase space and the evolution function , math Phi mathbb R times X to X math a point x in X is called periodic with period t if there exists ... prime period of the point x . Properties Given a periodic point x with period t , then math Phi s, x Phi s t, x , math for all s in R Given a periodic point x then all points on the orbit dynamics orbit math gamma x math through x are periodic with the same prime period. See also Limit cycle Limit set Stable manifold Stable set Sharkovsky s theorem Stationary point Periodic points of complex quadratic ... more details
Periodic poling is a formation of layers with alternate orientation in a birefringent material. The domains are regularly spaced, with period in a multiple of the desired wavelength of operation. The structure is desired to achieve quasi phase matching QPM in the material. Periodically poled crystal s are frequently used as nonlinear optical materials. They are up to 20 times more efficient at second harmonic generation than crystals of the same material without Periodic table crystal structure periodic structure. The material for the crystals is usually a wide band gap inorganic crystal, or in some cases a suitable Organic chemistry organic polymer . Some popular materials in current use are potassium titanyl phosphate KTP , lithium niobate , and lithium tantalate . The periodic structure is created in the crystal using a range of techniques. Pulsed electric field, electron bombardment, thermal pulsing, or other methods can be used to reposition the atom s in the crystal structure lattice , creating oriented domains. This can be achieved either during the growth of the crystal, or subsequently. http www.iop.org EJ abstract 0022 3727 28 9 001 External links http www.rp photonics.com periodic poling.html Encyclopedia of laser physics and technology optics stub Category Nonlinear optics ... more details
Periodic deposit is the investment made in form of equal deposits over a time period regularly. Each deposit recurs after a time interval. Such an investment is made to achieve a pre planned financial objective and or when the capital to invest is less. In simpler words, Periodic Deposit is a deposit recurring on a periodic basis. Investment is made over the period grows over the period and matures at the end of the period. Real World Example Image periodic deposit.png right thumb 300px Periodic Deposit Performance Chart based on Real World Example John is planning investment for his retirement. He has decided to invest an amount of 150.00 USD per pay check over a period of 30 years. He receives his pay check twice every month. The interest rate expected is 10.00 per annum with quarterly compounding. Investment class wikitable border 1 Starting Amount Deposit Mode Periodic Amount Period Interest Rate Compounding 0.00 USD SemiMonthly 150.00 USD 30 Year 10.00 Quarterly small All deposits made at start of the period small Returns class wikitable border 1 Invested Amount Interest Accrued Maturity Amount Gain 108,000.00 USD 562,498.37 USD 670,498.37 USD 520.83 See also Rate of return on investment Finance Interest Real interest rate Single deposit finance stub Category finance ... more details
Infobox Disease Name Periodic paralysis Image Caption DiseasesDB ICD10 ICD10 G 72 3 g 70 ICD9 ICD9 359.3 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D010245 Periodic paralysis is a group ... the cell to depolarize and become unable to move a channelopathy . The symptoms of periodic paralysis can also be caused by hyperthyroidism , and are then labeled thyrotoxic periodic paralysis ..., enabling a correct diagnosis. Types Periodic paralysis is an autosomal dominant myopathy with considerable ... are affected to the same degree . Specific diseases include Hypokalemic periodic paralysis OMIM 170400 , where potassium leaks into the muscle cells from the bloodstream. Hyperkalemic periodic paralysis ... OMIM 168300 , a form which often accompanies hyperkalemic periodic paralysis, but may present alone .... This means people with both hyperkalemic periodic paralysis and paramyotonia congenita ... , a form of periodic paralysis that includes significant heart rhythm problems, fainting and risk ... body store of potassium is usually normal it is just in the wrong place. Treatment Treatment of the periodic ... Tawil syndrome is similar to that for other types of periodic paralysis, with dichlorphenamide ... in patients with familial hypokalemic periodic paralysis journal Biochemical and Biophysical Research ... and Clinical Phenotype of Korean Patients with Familial Hypokalemic Periodic Paralysis journal ... cite journal last Lee first GM coauthors Kim JB title Hyperkalemic periodic paralysis and paramyotonia ... j.pediatrneurol.2009.07.010 External links http www.periodicparalysis.org Periodic Paralysis Association http www.hkpp.org Periodic Paralysis News Desk http theperiodicparalysisnewsdesk.blogspot.com Periodic Paralysis International http www.ninds.nih.gov disorders periodic paralysis periodic paralysis.htm NIH information page on periodic paralysis http www.clevelandclinic.org health health info ... diseases Category Channelopathy Periodic Paralysis Category Rare diseases de Periodische L hmung ... more details
About the periodic table of the elements other uses The Periodic Table disambiguation The Periodic Table sprotected2 File Periodic table.svg thumb right 350px The standard layout of the periodic table. The colors represent different categories of elements. The periodic table is a tabular display of the chemical ... atomic number while rectangular in general outline, gaps are included in the rows or Period periodic ... gas es, in columns or Group periodic table groups , forming distinct rectangular areas or Block periodic table blocks . ref name Gray cite book last Gray first Theodore title The Elements A Visual ... location New York isbn 978 1 57912 814 2 page 240 ref Because the periodic table accurately predicts ... developed it in 1869 to illustrate periodic trends in the properties of the then known elements ref ... is being pursued, with the question of how the periodic table may need to be modified to accommodate these elements being extended periodic table a matter of ongoing debate . History Main History of the periodic table Image Mendeleev s 1869 periodic table.png 300px thumb left Mendeleev s 1869 periodic ... published their periodic tables in 1869 and 1870, respectively. They both constructed their tables ... periodic table to predict the properties of those missing elements, such as gallium and germanium ... had listed the elements in order of increasing atomic number . ref cite book title The Periodic ... of Mendeleev s periodic table, the gaps he identified were filled as chemists discovered additional ... The production of various transuranic elements has expanded the periodic table significantly, the first ... 1485 ref Contents periodic table All versions of the periodic table only include chemical elements ... element is represented in the same cell. In the standard periodic table, the elements are listed in order ... row Period periodic table period is started when a new shell has its first electron. Columns Group periodic table groups are determined by the electron configuration of the atom elements with the same ... more details
expert date May 2010 one source date May 2010 Periodic breathing is an abnormal pattern of breath ing characterized by oscillation of ventilation between hyperpnea and hypopnea not hyperpnea and Apnea as in Cheyne Stokes respiration with a crescendo decrescendo pattern in the depth of respirations, to compensate for changing blood plasma serum partial pressure s of oxygen and carbon dioxide . ref name kumar and clark cite book last1 Kumar first1 Parveen last2 Clark first2 Michael title Clinical Medicine. Sixth edition. chapter 13 publisher Elsevier Saunders year 2005 pages 733 isbn 0 7020 2763 4 ref Cheyne Stokes respiration and periodic breathing are known together as Central sleep apnoea syndrome CSAS ref name kumar and clark . References div class references small references div respiratory stub Category Respiration Category Medical terms ... more details
unreferenced date September 2011 In signal processing , any periodic function math f T math with period math T, math can be represented by a summation of an infinite number of instances of an aperiodic function, math f, math that are offset by integer multiples of math T. math This representation is called periodic summation math f T t sum n infty infty f t nT sum n infty infty f t nT . math When math f T math is alternatively represented as a complex Fourier series , the Fourier coefficients are proportional to the values or samples of the continuous Fourier transform of math f math at intervals of math scriptstyle 1 T. math ref The form of the transform assumed here is math F nu stackrel mathrm def int infty infty f t e i2 pi nu t , dt. math ref That identity is known as the Poisson summation formula . Quotient space as domain If a periodic function is represented using the Quotient space linear algebra quotient space Domain of a function domain math mathbb R T cdot mathbb Z math then one can write math varphi T mathbb R T cdot mathbb Z to mathbb R math math varphi T t sum tau in t f tau math instead. The arguments of math varphi T math are equivalence class es of real number s that share the same fractional part when divided by math T math . Notes reflist See also Dirac comb Circular convolution Discrete time Fourier transform Category Functions and mappings category of periodic function Category Signal processing category of a typical area of application ... more details
or H sub 5 sub IO sub 6 sub . In dilute aqueous solution, periodic acid exists as discrete hydronium ... in nature but can be formed synthetically. There being two forms of periodic acid, it follows ... oxidizing than perchlorates. Periodic acid is used in organic chemistry for structural analysis. Periodic acid will cleave Vicinal chemistry vicinal diol s into two aldehyde or ketone fragments ... as an oxidising agent of moderate strength Image Periodic acid 3D balls.png thumb left Ball ... pl Kwas nadjodowy pt cido peri dico ro Acid periodic ru simple Periodic acid zh ... more details
Refimprove date June 2007 selfref This article refers to periodic trends in chemistry , for other periodic trends see trend . Image Periodic trends.svg thumb right The Periodic Trends In chemistry , periodic trends are the tendencies of certain elemental characteristics to increase or decrease as one progresses along a row or column of the periodic table of elements. Atomic radius Main Atomic radius The atomic radius is the distance from the atomic nucleus to the outermost stable Atomic orbital electron orbital in an atom that is at Mechanical equilibrium equilibrium . The atomic radius tends to decrease as one progresses across a period from left to right because the effective nuclear charge increases, thereby attracting the orbiting electrons and lessening the radius. The atomic radius usually increases while going down a group due to the addition of a new energy level shell . However, diagonally, the number of protons has a larger effect than the sizeable radius. For example, lithium 145 picometer has a smaller atomic radius than magnesium 150 picometer . Atomic radius decreases from left to right across a period, and also increases from top to bottom down a group. Ionization potential Main Ionization energy The ionization potential or the ionization energy is the minimum amount of energy required to remove one electron from each atom in a mole of atoms in the gaseous state. The first ionization energy is the energy required to remove one, the nth ionization energy is the energy required to remove the atom s n th electron, after the n 1 electrons before it have been removed. Trend wise, ionization potentials tend to increase while one progresses across a period because the greater number of protons higher nuclear charge attract the orbiting electrons more strongly, thereby ... on the periodic table, the ionization energy will likely decrease since the valence electrons are farther ... scale. Trend wise, as one moves from left to right across a period in the periodic table, the electronegativity ... more details
A periodic sentence is a stylistic device employed at the sentence level, characterized as a sentence that is not grammatically complete until the final clause or phrase. ref cite book last Cicero first Marcus Tullius authorlink Cicero editor Stephen Ciraolo title Pro Caelio url http books.google.com books?id huar3SdjthAC&pg PA3 edition 2 year 1999 publisher Bolchazy Carducci Publishers isbn 9780865164611 page 3 ref Characteristics The periodic sentence emphasizes its important point by putting first all subordinate clause s and other Grammatical modifier modifiers to its main idea. ref name Baldwin1909 cite book last Baldwin first Charles Sears title Composition, Oral and Written url http books.google.com books?id P3BLAAAAMAAJ&pg PA122 accessdate 7 July 2011 year 1909 publisher Longmans, Green and Co. page 122 PD notice ref The sentence unfolds gradually, so that the thought contained in the subject grammar subject verb group becomes available only at the sentence s end. ref name harmon Obviously artificial, it is used mostly in what in oratory is called the grand style. ref cite book last Cicero first Marcus Tullius authorlink Cicero editor Harold C. Gotoff title Cicero s Caesarian speeches a stylistic commentary url http books.google.com books?id aAokWH3m1aEC&pg PA279 year 1993 ... 10 year 2006 publisher Pearson Prentice Hall isbn 9780131344426 page 386 ref Periodic sentences ... of the periodic sentence. ref cite book last Chevalier first Tracy title Encyclopedia of the essay ... page 179 ref Decline In English literature the decline of the periodic sentence s popularity ... style of his time, of which the periodic sentence was characteristic in his journal, Thoreau ... usage According to William Harmon , the periodic sentence is used to arouse interest and curiosity ... Macmillan page 277 ref A now famous periodic sentence occurs in Nikolai Gogol s short story The Overcoat ... Quote on pp. 1016 17. ref See also Euphuism References Reflist DEFAULTSORT Periodic Sentence ... more details
saved book title Extensions of the periodic table subtitle Period 8 and beyond cover image cover color Extensions of the periodic table Period 8 and beyond Overview Periodic table Extended periodic table Island of stability Systematic element name Elements beyond period 8 Ununennium 119 Ununennium Unbinilium 120 Unbinilium Unbiunium 121 Unbiunium Unbibium 122 Unbibium Unbiquadium 124 Unbiquadium Unbihexium 126 Unbihexium Untriseptium 137 Untriseptium Wikipedia books on elements ... more details
saved book title Periodic table periods subtitle cover image cover color Periodic table groups Overview Period periodic table Period Periods Period 1 element Period 2 element Period 3 element Period 4 element Period 5 element Period 6 element Period 7 element Period 8 element Miscellany Extended periodic table ... more details
Image Elementspiral.svg right thumb 350px Theodor Benfey s periodic table 1964 Alternative periodic tables ... depiction of the Periodic System. ref E.R. Scerri. The Periodic Table, Its Story and Its ... Fresh Energy for the Periodic Law. AuthorHouse, 2006. ISBN 978 1 4259 4862 7 ref Several have been ... are effectively captured by the periodic table standard standard periodic table . A 1974 review of the tables ... of the Periodic System During One Hundred Years. Alabama University of Alabama Press, 1974 . ISBN 0 8173 3200 6. ref Aims Alternative periodic tables are developed often to highlight or emphasize ... periodic tables. Some tables aim to emphasize both the nucleon and electronic structure of atoms ... database.php?PT id 152 Left Step Periodic Table 1928 is considered to be the most significant alternative to the traditional depiction of the periodic system. It organizes elements according to orbital ... userguide ADOMAH Periodic Table , 2006 is helpful for writing electron configurations. ref Philip J. Stewart Charles Janet unrecognized genius of the periodic system. Foundations of Chemistry ... Periodic Table H.G. Deming used the long periodic table in his textbook General Chemistry, which appeared ... B . This version of the periodic table was distributed for many years by the Sargent Welch Scientific ... neither A nor B. The Noble Gas Group was originally attached by Deming to the left side of the periodic .... In Theodor Benfey s periodic table 1964 , the elements form a two dimensional spiral, starting from ... The Chemical Galaxy 2004 is organized in a similar way. In the extended periodic table , suggested by Glenn ... s 1869 periodic table The oldest periodic table is the short form table of Dmitri Mendeleev , which ... used by many, as shown by this http flerovlab.jinr.ru flnr dimg Periodic Table.jpg contemporary ... Stowe s physicist s periodic table is three dimensional with the three axes representing the principal ... a group 2 element . Paul Giguere s 3 D periodic table consists of 4 billboards with the elements ... more details
Summary Information Description Periodic table by Quality Source User Cryptic C62 , edited by User Chemicalinterest Date 20 30, 8 September 2010 UTC Author See Source Permission other versions File Periodic Table by Quality.PNG Licensing PD author ... more details
See also Book Chemical elements sorted alphabetically Book Chemical elements sorted by number saved book title Periodic table subtitle cover image Periodic Table Armtuk3.svg cover color Periodic table Overview Periodic table History of the periodic table History Alternative periodic tables Alternatives Chemical element Element Isotope Atomic orbital Orbital Groups Group periodic table Group Alkali metal Group 1 alkali metals Alkaline earth metal Group 2 alkaline earth metals Group 3 element Group 3 Group 4 element Group 4 Group 5 element Group 5 Group 6 element Group 6 Group 7 element Group 7 Group 8 element Group 8 Group 9 element Group 9 Group 10 element Group 10 Group 11 element Group 11 Group 12 element Group 12 Boron group Group 13 boron group Carbon group Group 14 carbon group Nitrogen group Group 15 nitrogen group Chalcogen Group 16 chalcogens Halogen Group 17 halogens Noble gas Group 18 noble gases Periods Period periodic table Period Period 1 element Period 1 Period 2 element Period 2 Period 3 element Period 3 Period 4 element Period 4 Period 5 element Period 5 Period 6 element Period 6 Period 7 element Period 7 Extended periodic table Extensions Blocks Periodic table block Block s block p block d block f block Other divisions Transition metal Lanthanide Actinide Metal Metalloid Nonmetal Platinum group Noble metals Noble metal Post transition metal Transuranium element Transactinide element See also Table of nuclides Island of stability Category Wikipedia books on the periodic table Category Wikipedia books on chemical elements Category Periodic table Wikipedia books on elements ... more details
Orphan date February 2009 unreferenced date August 2008 Multiple Asynchronous Periodic Polling MAPP is a synchronization computer science synchronization method used primarily in Computer Science. This method is similar to periodic polling computer science polling . In MAPP, two or more periodic polling handlers such as using multiple timer s are applied to form a single aggregate polling scheme. By changing the combination of periods and phase shifts, MAPP can optimize corner cases which are problematic to conventional periodic polling. MAPP is mainly used when the temporal resolution of conventional periodic polling is not high enough for the particular application. For example, 5 timers with identical polling period but 1 5 cycle phase shift from the previous one may be used together to increase the polling rate to 5 times of that which could be achieved with a single timer. Category Input output comp sci stub ... more details
saved book title Periodic table groups subtitle cover image cover color Periodic table groups Overview Group periodic table Group Groups Alkali metal Alkaline earth metal Group 3 element Group 4 element Group 5 element Group 6 element Group 7 element Group 8 element Group 9 element Group 10 element Group 11 element Group 12 element Boron group Carbon group Nitrogen group Chalcogen Halogen Noble gas Other groups Iron group Platinum group Miscellany Collective names of groups of like elements Main group element Wikipedia books on elements ... more details
Summary A periodic table created by me to show more clearly the amount of electrons in each shell. Licensing PD self date November 2007 Copy to Wikimedia Commons bot Fbot ... more details
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