Question

1. what ion will be formed by the phosphorus atom shown below when it has

assessment questions
o p5+
o p3+
o p5-
o p3-

Explanation:

Step1: Determine electron configuration of P

Phosphorus (P) has atomic number 15, so electron configuration: 2, 8, 5 (valence electrons = 5).

Step2: Analyze ion formation

To achieve stable octet (8 valence electrons), P gains 3 electrons (since 5 + 3 = 8). Gaining electrons gives a negative charge. So charge is \(3^-\), ion is \(P^{3-}\).

Answer:

\(P^{3-}\) (corresponding to the option with \(P^{3-}\))