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is the tiny, central core of an atom which contains the protons and neutrons (red thing)[image] |
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| move rapidlyin all directions around the atoms, have a negative charge (-) |
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| the electrons that are the farthest away from the nucleus |
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one way to show the number of valance electrons that an atom has [image] |
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the number of protons in the nucleus of an atom 8O |
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| elements in the same columns (up & down) |
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| a row across the periodic table of elememts |
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| an atom or group of atoms that has become electrically charged |
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| the attraction between two oppositly charged ions |
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ions that are made of more than one atom poly meaning more than one & atomic meaning... atom |
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| the form an orderly, 3-D arrangment of ions |
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| a chemical bond formed when two share electrons |
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| when two pairs of electrons are shared between the atoms |
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| consist of molecules having covalently bonded atoms |
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| a covalent bond in which electrons are shared unequally |
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| the valence electrons are shared equally |
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