Information about Post Transition Metal
The trivial name poor metals (or post-transition metals) is sometimes applied to the metallic elements in the p-block of the periodic table. Their melting and boiling points are generally lower than those of the transition metals and their electronegativity higher, and they are also softer. They are distinguished from the metalloids, however, by their significantly-greater boiling points in the same row.
"Poor metals" is not a rigorous IUPAC-approved nomenclature, but the grouping is generally taken to include aluminium, gallium, indium, tin, thallium, lead, and bismuth. Occasionally germanium, antimony, and polonium are also included, although these are usually considered to be metalloids or "semi-metals". Elements 113 to 116, which are currently allocated the systematic names ununtrium, ununquadium, ununpentium and ununhexium, would likely exhibit properties characteristic of poor metals; however as of yet insufficient quantities of them have been synthesized to examine their chemical properties.
The periodic table of the chemical elements is a tabular method of displaying the chemical elements. Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869.
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"Poor metals" is not a rigorous IUPAC-approved nomenclature, but the grouping is generally taken to include aluminium, gallium, indium, tin, thallium, lead, and bismuth. Occasionally germanium, antimony, and polonium are also included, although these are usually considered to be metalloids or "semi-metals". Elements 113 to 116, which are currently allocated the systematic names ununtrium, ununquadium, ununpentium and ununhexium, would likely exhibit properties characteristic of poor metals; however as of yet insufficient quantities of them have been synthesized to examine their chemical properties.
| 13 | 14 | 15 | 16 | 17 |
|---|---|---|---|---|
| B Boron | C Carbon | N Nitrogen | O Oxygen | F Fluorine |
| Al Aluminium | Si Silicon | P Phosphorus | S Sulfur | Cl Chlorine |
| Ga Gallium | Ge Germanium | As Arsenic | Se Selenium | Br Bromine |
| In Indium | Sn Tin | Sb Antimony | Te Tellurium | I Iodine |
| Tl Thallium | Pb Lead | Bi Bismuth | Po Polonium | At Astatine |
See also
References
The Chemistry Student's Companion, Stephen Schaffter, Lulu Press, Inc 2006 ISBN 1-4116-9247-0External links
Periodic tables | |
|---|---|
| Layouts | Standard Vertical Full names Names and atomic masses Text for last Huge table Metals and nonmetals Blocks Valences Inline f-block 218 elements Electron configurations Atomic masses Electronegativities Alternatives |
| Lists of elements | Name Atomic symbol Atomic number Boiling point Melting point Density Atomic mass |
| Groups | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
| Periods: | 1 2 3 4 5 6 7 8 |
| Series | Alkalis Alkaline earths Lanthanides Actinides Transition metals Poor metals Metalloids Nonmetals Halogens Noble gases |
| Blocks | s-block p-block d-block f-block g-block |
In chemistry and zoology, a trivial name (also a common name or vernacular name) is a non-systematic name. That is, the name is not recognised according to the rules of any formal (e.g. IUPAC) system of nomenclature.
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The Macro Expansion Template Attribute Language complements TAL, providing macros which allow the reuse of code across template files. Both were created for Zope but are used in other Python projects as well.
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chemical element, or element, is a type of atom that is defined by its atomic number; that is, by the number of protons in its nucleus. The term is also used to refer to a pure chemical substance composed of atoms with the same number of protons.
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The p-block of the periodic table of the elements consists of the last six groups minus helium (which is located in the s-block). In the elemental form of the p-block elements, the highest energy electron occupies a p-orbital.
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standard periodic table below.
The periodic table of the chemical elements is a tabular method of displaying the chemical elements. Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869.
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The melting point of a crystalline solid is the temperature range at which it changes state from solid to liquid. Although the phrase would suggest a specific temperature and is commonly and incorrectly used as such in most textbooks and literature, most crystalline compounds
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boiling point of a liquid is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid.[1][2][3][4]
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In chemistry, the term transition metal (sometimes also called a transition element) has two possible meanings:
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- It commonly refers to any element in the d-block of the periodic table, including zinc, cadmium and mercury.
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Electronegativity, symbol χ, is a chemical property which describes the power of an atom (or, more rarely, a functional group) to attract electrons towards itself.[1] First proposed by Linus Pauling in 1932 as a development of valence bond theory,[2]
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Hardness refers to various properties of matter in the solid phase that give it high resistance to various kinds of shape change when force is applied. Hard matter is contrasted with soft matter.
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Metalloid is a term used in chemistry when classifying the chemical elements. On the basis of their general physical and chemical properties, nearly every element in the periodic table can be termed either a metal or a nonmetal - however a few elements with intermediate properties
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The International Union of Pure and Applied Chemistry (IUPAC) (IPA: [aɪ ju pæk]) is an international non-governmental organization established in 1919 devoted to the advancement of chemistry.
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Aluminium (IPA: /ˌæljʊˈmɪniəm/, /ˌæljəˈmɪniəm/) or aluminum (IPA: /əˈluːmɪnəm/
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3, 1
(amphoteric oxide)
Electronegativity 1.81 (scale Pauling)
Ionization energies
(more) 1st: 578.8 kJmol−1
2nd: 1979.
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(amphoteric oxide)
Electronegativity 1.81 (scale Pauling)
Ionization energies
(more) 1st: 578.8 kJmol−1
2nd: 1979.
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Indium (IPA: /ˈɪndiəm/) is a chemical element with chemical symbol In and atomic number 49. This rare, soft, malleable and easily fusible poor metal is chemically similar to aluminium or gallium but more
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TIN may refer to:
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- Tax identification number
- Triangulated irregular network, a data structure used in a geographic information systems
See also
- Tin
This article is about the metallic chemical element.
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1
(mildly basic oxide)
Electronegativity 1.62 (scale Pauling)
Ionization energies 1st: 589.4 kJ/mol
2nd: 1971 kJ/mol
3rd: 2878 kJ/mol
Atomic radius 190 pm
Atomic radius (calc.
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(mildly basic oxide)
Electronegativity 1.62 (scale Pauling)
Ionization energies 1st: 589.4 kJ/mol
2nd: 1971 kJ/mol
3rd: 2878 kJ/mol
Atomic radius 190 pm
Atomic radius (calc.
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2
(Amphoteric oxide)
Electronegativity 2.33 (scale Pauling)
Ionization energies
(more) 1st: 715.6 kJmol−1
2nd: 1450.5 kJmol−1
3rd: 3081.
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(Amphoteric oxide)
Electronegativity 2.33 (scale Pauling)
Ionization energies
(more) 1st: 715.6 kJmol−1
2nd: 1450.5 kJmol−1
3rd: 3081.
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3, 5
(mildly acidic oxide)
Electronegativity 2.02 (scale Pauling)
Ionization energies
(more) 1st: 703 kJmol−1
2nd: 1610 kJmol−1
3rd: 2466 kJmol−1
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(mildly acidic oxide)
Electronegativity 2.02 (scale Pauling)
Ionization energies
(more) 1st: 703 kJmol−1
2nd: 1610 kJmol−1
3rd: 2466 kJmol−1
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Germanium (IPA: /dʒə(r)ˈmeɪniəm/) is a chemical element in the periodic table that has the symbol Ge and atomic number 32.
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3, 5
Electronegativity 2.05 (scale Pauling)
Ionization energies
(more) 1st: 834 kJmol−1
2nd: 1594.9 kJmol−1
3rd: 2440 kJmol−1
Atomic radius 145 pm
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Electronegativity 2.05 (scale Pauling)
Ionization energies
(more) 1st: 834 kJmol−1
2nd: 1594.9 kJmol−1
3rd: 2440 kJmol−1
Atomic radius 145 pm
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4, 2
(amphoteric oxide)
Electronegativity 2.0 (scale Pauling)
Ionization energies 1st: 812.1 kJ/mol
Atomic radius 190 pm
Atomic radius (calc.) 135 pm
Miscellaneous
Magnetic ordering nonmagnetic
Electrical resistivity (0 C) (α) 0.
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(amphoteric oxide)
Electronegativity 2.0 (scale Pauling)
Ionization energies 1st: 812.1 kJ/mol
Atomic radius 190 pm
Atomic radius (calc.) 135 pm
Miscellaneous
Magnetic ordering nonmagnetic
Electrical resistivity (0 C) (α) 0.
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Metalloid is a term used in chemistry when classifying the chemical elements. On the basis of their general physical and chemical properties, nearly every element in the periodic table can be termed either a metal or a nonmetal - however a few elements with intermediate properties
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Ununtrium (IPA: /ˌjuːˈnʌntriəm/), or eka-thallium, is the temporary name of a synthetic element in the periodic table that has the temporary symbol Uut and has the atomic number 113.
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Ununquadium (IPA: /ˌjuːˌnʌnˈkwɒdiəm/), or eka-lead, is the temporary name of a radioactive chemical element in the periodic table that has the temporary symbol Uuq and has the atomic
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Ununpentium (IPA: /ˌjuːnʌnˈpɛntiəm/) is the temporary name of a synthetic superheavy element in the periodic table that has the temporary symbol Uup and has the atomic number 115.
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Ununhexium (IPA: /ˌjuːnʌnˈhɛksiəm/) is the temporary name of a synthetic superheavy element in the periodic table that has the temporary symbol Uuh and has the atomic number 116.
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The phrase "chemical property" is context-dependent, but generally refers to a material's behavior at ambient conditions (i.e. room temperature, atmospheric pressure, oxygen-bearing atmosphere).
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The Boron group is the series of elements in group 13 (IUPAC style) in the periodic table. The group has previously also been referred to as the earth metals and the triels, from the Latin tri
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The carbon group is group 14 (IUPAC style) in the periodic table. Once also known as the tetrels (from Latin tetra, four), stemming from the earlier naming convention of this group as Group IVB.
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