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| when elements are arranged in order of increasing atomic number, there is a pattern in their physical and chemical properties. |
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| an arrangement of the elements in order of their atomic numbers so that the elements with similar properties fall in the same column, or group |
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| the elements of group two of the periodic table |
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| the elements of group two of the periodic table |
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| d-block elements are metals with typical metallic properties |
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| One half the distance between the nuclei of identical atoms that bonded together |
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| an atom that has positive or negetive charge |
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| process that results in the formation of an atom |
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| the energy it takes to remove an electron from an atom |
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| electrons available to be lost, gained, or shared |
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| measure of the availability of an atom in a compound to attract electrons from another atom |
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| groups of three element with similar chemical properties |
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| horizontal rows of the periodic table |
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| vertical columns of the periodic table |
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| the energy change that occurs when an electron is added |
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