Atomic theory supports the periodic table
Group 1 elements lose 1 electron (1+ charge)
Group 2 elements lose 2 electrons (2+ charge)
Group 312 elements lose different numbers of
electrons
Group 13 elements lose 3 electrons (3+ charge)
Group 14 elements can lose or gain 4 electrons
(4+ 4 charge)
Group 15 elements gain 3 electrons (3 charge)
Group 16 elements gain 2 electrons (2 charge)
Group 17 elements gain 1 electron (1 charge)
Group 18 elements gain no electrons (0)
Lewis structures show the valence electrons of
an atom.
Ionic compounds
becomes said at room temperature
Naming Ionic Compounds
First element stays the same
Second element ends in "ide"
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