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16 Cards in this Set
- Front
- Back
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Periodic table |
Arranges elements metal, nonmetals, semimetals |
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Periodic law |
Repeating Patter when arranged according to increasing atomic number |
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Period |
Horizontal row. Vary from metállic to non Metallic |
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Group |
Vertical column. Family of elements with similar properties |
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Atomic number (z) |
A value that indicates the number of protons in the nucleus of an atom |
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Metal |
Shiny appearance. High density. High melting point. Good conductor of heat and electricity. |
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Nonmetal |
Dull appearance. Low density. Low melting point. Not a good conductor of heat and electricity. |
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Semimetal |
Metallic appearance. Between a metal and nonmetal also called metalloid |
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Alkali metals |
Group IA/1 elements,excluding hydrogen |
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Alkaline earth metals |
Group IIA/2 elements |
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Halogens |
Group VIIA/17 elements |
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Noble gases |
Un reactive group VIIIA/18 elements |
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Transition elements |
Group B (3-12) elements |
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Lanthanide series |
Elements with atomic 58-71 |
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Actinide series |
Elements with atomic númbers 90-103 |
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Valence electrons |
Occupy the outermost S&P sublevels of an atom |
