Based on the electronic configuration;
However, atoms can lose or gain electrons to form ions.
Ar contains 18 electrons
Sn4+ has lost 4 electrons to then have 46 electrons
F has 9 electrons
Fe3+ has lost 3electrons to have 23 electrons
P3- has gained 3 electrons to have 18 electrons
V has 23 electrons
Ag+ has lost one electron to have 46 electrons
N3- has gained three electrons to have 10 electrons
Therefore, based on the electronic configuration:
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