Question

what is the most common ion charge for phosphorus?+5+3-3-1

Explanation:

Step1: Determine the electron configuration of phosphorus

Phosphorus has an atomic number of 15. Its electron configuration is \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{3}\).

Step2: Analyze the tendency to gain or lose electrons

Phosphorus has 5 valence electrons (\(3s^{2}3p^{3}\)). To achieve a stable octet configuration (similar to noble gases), it is easier for phosphorus to gain 3 electrons rather than lose 5 electrons.

Step3: Calculate the ion charge

When it gains 3 electrons, the ion charge is \(- 3\).

Answer:

-3