Question

phosphorus
determine the ionic name.
ion
write the chemical symbol and charge.
the ionic charge of is achieved when the atom electrons.
check

Explanation:

Step1: Recall phosphorus ion formation

Phosphorus has 5 valence - electrons and tends to gain 3 electrons to achieve a stable octet.

Step2: Determine ionic name

When phosphorus gains 3 electrons, it forms a phosphide ion.

Step3: Write chemical symbol and charge

The chemical symbol of phosphorus is P, and with a gain of 3 electrons, the charge is 3-. So the symbol is $P^{3 - }$.

Step4: Explain ionic - charge formation

The ionic charge of 3 - is achieved when the atom gains 3 electrons.

Answer:

Ion name: Phosphide
Chemical symbol and charge: $P^{3 - }$
The ionic charge of 3 - is achieved when the atom gains 3 electrons.