Question

How many electrons does phosphorus need to gain to have a stable outer electron shell

1
2
3
4​

Answer 1

3

Step-by-step explanation:

luckily, every phosphorus atom is looking to gain 3 electrons. It's a perfect match. But something to notice though, look how they have a bond with six electrons. That is called triple bond.

Answer 2

3

Step-by-step explanation:

Phosphorous valence is 5. so to get stable electronic configuration it has to gain 3 more electrons to its outer shell