BI 1

Why does an ion of phosphorus, p3-, have a larger radius than a neutral atom of phosphorus

There is a greater Coulombic attraction between the nucleus and the electrons in p3-

The core electrons in p3- exert a weaker shielding force than those of a neutral atom

The nuclear charge is weaker in p3- than in P

The electrons in p3- have a greater Coulombic repulsion than those in neutral atom.

Which neutral atom of the following elements would have the most unpaired electrons?

Titanium

Manganese

Nickel

Zinc

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