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An atom (or group of atoms) that has positive or negative charge resulting from the gain or loss of valence electrons |
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Atoms having the same atomic number but different mass number; atoms of the same elements that differ by the number of neutrons in the nucleus. |
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The amount of energy involved when a neutral atom gains an electron |
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A term for two or more ions(or ions and an atom) having the same electron configuration; ex Na+ and F- each have 10 electrons, and their electron configurations are identical to the noble gas Neon |
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The amount of energy necessary to remove an electron from a neutral atom in the gaseous state |
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The electrons that occupy the outermost s and p sublevels of an atom. the electrons in the highest s and p sublevels in an atom that undergo reaction and from chemical bonds. |
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The Group A (1,2 and 13-18) elements in the periodic table: also termed main group elements. |
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The group B(3-12) elements in the periodic table |
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an element that is generally shiny in Appearance has high density high melting point and is a good conductor of heat and electricity |
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An element that is generally metallic in appearance and has properties midway between those of a metal and a nonmetal; also called a metalloid. |
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An element that is generally dull in appearance, has a low density, low melting point and is not a good conductor of heat and electricity. |
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Group 1/IA on the periodic table |
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Group 2/IIA on the periodic table |
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Group 18/VIIIA on the periodic table |
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Group 17/VIIA on the periodic table |
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Period 6 of Inner Transitional Elements |
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Period 7 of Inner Transitional Elements |
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Inner Transitional Elements |
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Elements outside periodic table |
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