Chemistry SOL Review Packet

Example: the formula for magnesium nitrate is written Mg(NO3)2 to show that there is a ratio of one magnesium atom, 2 nitrogen atoms and 6 oxygen atoms in the compound. 2.3 Elements in groups 1, 2 and 13 (metals) will lose electrons and form positive ions. Elements in groups 15, 16 and 17 will gain electrons and form negative ions. ................
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