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18 Cards in this Set
- Front
- Back
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periodic law |
the physical and chemical properties of elements are periodic functions of their atomic numbers |
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periodic table |
arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same groups |
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lanthanides |
14 elements with atomic numbers from 58-71 |
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actinides |
14 elements with atomic numbers from 90-103 |
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alkali metals |
elements of group 1 of the periodic table |
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alkaline earth metals |
elements of group 2 on the periodic table |
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transition metals |
d-block elements that are metals with typical metallic properties |
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main group elements |
p-block elements with s-block elements |
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halogens |
elements in group 17 |
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atomic radius |
defined as one-half the distance between the nuclei of identical atoms bonded together |
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ion |
atom or group of bonded atoms that has a positive or negative charge |
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ionization |
any process that results in the formation of an ion |
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ionization energy (IE) |
energy required to remove one electron from a neutral atom of an element |
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electron affinity |
energy change that occurs when an electron is acquired by a neutral atom |
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cation |
positive ion |
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anion |
negative ion |
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valence electrons |
electrons available to be lost, gained, or shared in the formation of chemical compounds |
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electronegativity |
measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound |
