Periodic table Periodic table The actinide series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table with atomic numbers 89 - 103. The actinide series is named after actinium. All actinides are f-block elements except lawrencium. There are also alternative arrangements which do not include either actinium or lawrencium in the actinide series. ...more on Wikipedia about "Actinide"
The alkali metals are the series of elements in Group 1 ( IUPAC style) of the periodic table, excluding hydrogen: that is, lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). They are all highly reactive and are never found in elemental form in nature. ...more on Wikipedia about "Alkali metal"
The alkaline earth metals are the series of elements in Group 2 ( IUPAC style) of the periodic table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra) (not always considered due to its radioactivity and very short half-life). ...more on Wikipedia about "Alkaline earth metal"
Alternative periodic tables are chemical element displays different from the well known Mendeleev periodic table. Several have been devised often purely for didactic reasons as not all correlations between the chemical elements are effectively captured by the standard periodic table. ...more on Wikipedia about "Alternative periodic tables"
The Boron group is the series of elements in group 13 ( IUPAC style) in the periodic table. These elements are characterized by having three electrons in their outer energy levels (valence layers). Boron is considered a metalloid, and the rest are considered metals of the poor metals group. ...more on Wikipedia about "Boron group"
The carbon group is group 14 ( IUPAC style) in the periodic table. In schools, it is often known as group 4. ...more on Wikipedia about "Carbon group"
The chalcogens (with the "ch" pronounced with a hard "c" as in " chemistry") are the name for the periodic table group 16 (old-style: VIB or VIA) in the periodic table. It is sometimes known as the oxygen family. It consists of the elements oxygen (O), sulfur (S), selenium (Se), tellurium (Te), the radioactive polonium (Po), and the synthetic ununhexium (Uuh). The compounds of the heavier chalcogens (particularly the sulfides, selenides, and tellurides) are collectively known as chalcogenides. Unless grouped with a heavier chalcogen, oxides are not considered chalcogenides. ...more on Wikipedia about "Chalcogen"
www.shortopedia.com rocks. Periodic_table
The chalcohalides are the group of chemical elements taken from the chalcogens ( periodic table group 16) ...more on Wikipedia about "Chalcohalide"
The Chemical Galaxy is a new periodic table designed by Philip Stewart in November 2004 based on the cyclical nature of characteristics of the chemical elements (which depend principally on the valence electrons). In 1951, Edgar Longman showed that arranging the elements in an elliptical spiral helped reveal patterns in their properties. This gave the then-12-year-old Stewart the idea that it resembled a spiral galaxy. It is designed as an inspiring supplement to existing periodic tables. ...more on Wikipedia about "Chemical Galaxy"
A chemical series is a group of chemical elements whose physical and chemical characteristics vary progressively from one end of the series to another. ...more on Wikipedia about "Chemical series"
The d-block of the periodic table of the elements consists of those periodic table groups that contain elements in which, in the atomic ground state, the highest-energy electron is in a d- orbital. The d-block elements are often also known as transition metals. ...more on Wikipedia about "D-block"
The f-block of the periodic table of the elements consists of those elements (sometimes referred to as the inner transition elements) for which, in the atomic ground state, the highest-energy electrons occupy f- orbitals. ...more on Wikipedia about "F-block"
The g-block is a hypothetical region in the periodic table of the elements. No elements in this region have yet been discovered in nature or synthesized artifically. The first element of the g-block would have atomic number 121, and the systematic name unbiunium. All elements in this region are likely to be highly unstable with respect to radioactive decay, and have an extremely short half life. ...more on Wikipedia about "G-block"
A Group 10 element is the series of elements in group 10 ( IUPAC style) in the periodic table, which consists of the transition metals Nickel (Ni), Palladium (Pd), Platinum (Pt), and Darmstadtium (Ds) ...more on Wikipedia about "Group 10 element"
www.shortopedia.com - Xtending Info.
A Group 11 element is the series of elements in group 11 ( IUPAC style) in the periodic table, consisting of transition metals which are the traditional coinage metals of copper (Cu), silver (Ag), and gold (Au). They are also known as the " noble metals." The name "coinage metals" is not recognized by the International Union of Pure and Applied Chemistry (IUPAC), and can be somewhat misleading as further elements are added to the table. In addition, various nations have used probably dozens of metals (including stainless steel, lead, and zinc) in coins. The short-lived transactinide roentgenium (Rg) is also a member of Group 11. ...more on Wikipedia about "Group 11 element"
A Group 12 element is the series of elements in group 12 ( IUPAC style) in the periodic table, consisting of transition metals which are zinc (Zn), cadmium (Cd), mercury (Hg), and ununbium (Uub). ...more on Wikipedia about "Group 12 element"
The Group 3 elements are chemical elements comprising the third vertical column of the periodic table. ...more on Wikipedia about "Group 3 element"
A Group 4 element is the series of elements in group 4 ( IUPAC style) in the periodic table, which consists of titanium (Ti), zirconium (Zr), hafnium (Hf) and rutherfordium (Rf). ...more on Wikipedia about "Group 4 element"
A Group 5 element is the series of elements in group 5 ( IUPAC style) in the periodic table, which consists of vanadium (V), niobium (Nb), tantalum (Ta), and dubnium (Db). ...more on Wikipedia about "Group 5 element"
A Group 6 element is the series of elements in group 6 ( IUPAC style) in the periodic table, which consists of the transition metals chromium (Cr), molybdenum (Mo), tungsten (W), and seaborgium (Sg). ...more on Wikipedia about "Group 6 element"
A Group 7 element is the series of elements in group 7 ( IUPAC style) in the periodic table, which consists of the transition metals manganese (Mn), technetium (Tc), rhenium (Re), and bohrium (Bh). ...more on Wikipedia about "Group 7 element"
The www.shortopedia.com spirit
A Group 8 element is the series of elements in group 8 ( IUPAC style) in the periodic table, which consists of the transition metals Iron (Fe), Ruthenium (Ru), Osmium (Os) and Hassium (Hs). ...more on Wikipedia about "Group 8 element"
A Group 9 element is the series of elements in group 9 ( IUPAC style) in the periodic table, which consists of the transition metals Cobalt (Co), Rhodium (Rh), Iridium (Ir), and Meitnerium (Mt). ...more on Wikipedia about "Group 9 element"
IUPAC has not recommended a specific format for the periodic table, so different conventions are permitted and are often used for the group number of lanthanides and actinides. There is no pre-existing physical entity for a " group" of elements. The notion is simply a convenient classification, since some elements have similar periodicities in their properties. This allows them to be arranged in columns that also happen to correspond with electron configurations. ...more on Wikipedia about "Group number of lanthanides and actinides"
The halogens are a chemical series. They are the elements in Group 17 (old-style: VII or VIIA) of the periodic table: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) and the as yet undiscovered ununseptium (Uus). The term halogen was coined to mean elements which produce salt in union with a metal. It comes from 18th century scientific French nomenclature based on erring adaptations of Greek roots. ...more on Wikipedia about "Halogen" Pure shortopedia. Pure Information Power. Periodic_table
This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia . Direct links to the original articles are in the text.
If you use exact copy or modified of this article you should preserve above paragraph and put also : It uses material from
the Shortopedia article about "Periodic table".
| MAIN PAGE | MAIN INDEX | CONTACT US |