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14 Cards in this Set
- Front
- Back
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alkali metals |
highly reactive and usually exist as compounds with other elements |
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Group 1 except Hydrogen |
alkali metals |
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alkaline earth metals |
group 2 elements with 2 valence electrons that are highly reactive |
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electronegativity |
indicates the relative ability of an element's atoms to attract electrons in a chemical bond |
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halogens |
a highly reactive group 17 element |
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period |
a horizontal row of elements in the modern periodic table |
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ion |
an atom or bonded group of atoms with a positive or negative charge |
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ionization energy |
the energy required to remove an electron from a gaseous atom |
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generally increases in moving from left-to-right across a period and decreases moving down a group |
ionization energy |
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noble gas |
an extremely unreactive group 18 element |
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octet rule |
states that atoms lose, gain, or share electrons in order to acquire the stable electron configuration of a noble gas |
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periodic law |
states that when the elements are arranged by increasing atomic number, there is a periodic repetition of their properties |
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representative element |
elements from groups 1, 2, and 13-18 in the modern PT, possessing a wide range of chemical and physical properties |
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transition element |
elements in groups 3-12 of the modern PT and are further divided into transition metals and inner transition metals |
