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S8P1.f
Distinguish between
Term | Definition |
---|---|
periodic table | a chart that organizes information about all of the known elements according to their properties |
period | in chemistry, a horizontal row of elements in the periodic table |
group | a verticle column of elements in the periodic table; elements in a group share chemical properties |
valence electrons | an electron that is found in the outermost shell of an atom and that determines the atoms chemical properties |
reactivity | describes how likely an element is to form bonds with other elements |
metalloid | elements that have properties of both metals and nonmetals |
insert | unable to react chemically under normal circumstances |