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S8P1.f
there are more than 100 elements and some have similiar properties as shown on
Term | Definition |
---|---|
periodic table | a chart that organizes info about all of the known elements according to their properties |
period | in chemistry a horizontal row of elements in the periodic table |
group | a vertical 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 | |
metalloid | |
inert |