Wednesday, August 10, 2011

Periodic table questions...?

In order: Period, 2 valence electrons, atomic m (not a physical property), families, nonmetal, metal (those three elements are non-metals / metalloids), chlorine, lose electrons, inactive metal, halogen, fluorine (only one in period 2), gains one electron, arsenic, family VA, order of atomic number (periodicity is based on atomic m), family 2

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