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9 Cards in this Set
- Front
- Back
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atomic weight |
the average relative mass of each element |
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family |
a vertical column on the periodic table; also called group |
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group |
a vertical column on the periodic table; also called family |
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isotope |
one of two or more atoms of the same element with different masses due to different numbers of neutrons |
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period |
a horizontal row on the periodic table |
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periodic |
something that repeats itself on a regular, predictable basis |
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halogens |
a family within the nonmetals (family 17) on the periodic table |
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noble gases |
a family of non-reactive gases (family 18) on the periodic table |
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stair-step |
a diagonal division on the periodic table that divides the metals from the nonmetals and along which lay the metalloids |
