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Families Of Elements
Atomic Theory
dan | phil |
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Alkali Metals | 1 Valence Electron, all metal, VERY reactive with water(H2O), group 1, react with nonmetals |
Alkali Earth Metals | Soft metals, reactive with group 6- not quite as reactive as Alkali Metals, 2 Valence Electrons, found in group 2. |
Halogens | Group 7, 7 Valence Electrons, most reactive nonmetals. |
Inert/Nobel Gases | Group 8, 8 Valence Electrons, non reactive, known for use in lights. Ex. Neon lights |
Compounds | Chemically combined atoms, occurs through valence electrons. Ex. Water(H2O) |
Mixtures | Molecules or atoms not chemically combined. Ex. Salt and Pepper |
Molecules vs. Atoms | ATOM is Singular and MOLECULES are two or more atoms. |
Valence Electrons | Is an electron associated with an atom, and can participate in formation of a chemical bond. |