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| The tiny, central core of the atom. |
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| Particles, with a positive charge, found inside the nucleus of an atom. |
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| Particles, with no charge, found inside the nucleus of an atom. |
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| Particles, with a negative charge, found outside the nucleus of an atom. |
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The electrons farthest away, or in the outer shell, of an atom.
They are the electrons involved in the bonding of atoms. |
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| One way to show the number of valence electrons an atom has. |
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| Periods on the periodic table |
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| The name of columns (that go up and down) on the table. These elements have similar properties. |
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| The rows across the Period Table |
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| Except for helium, atoms in this family have 8 valence electrons. |
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Group 17
7 Electrons
Non-metals
Reactive |
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Group 1 of the periodic table, are highly reactive metals that do not occur freely in nature. These metals have only one electron in their outer shell. Therefore, they are ready to lose that one electron in ionic bonding with other elements.
As with all metals, the alkali metals are malleable, ductile, and are good conductors of heat and electricity. The alkali metals are softer than most other metals. |
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| Atoms gain or lose electrons through this process |
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| An atom, or a group of atoms, that has become electronically charged. |
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| an attraction between two oppositely charged ions |
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| A chemical bond formed when two atoms share electrons |
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| When two pairs of electrons are shared |
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