Question

why phosphorus have 2 valencies, why not one?




the one who could make me understand in a easy way i'm gonna mark him brainliest answer​

Answer 1

Answer:

phosphorus z = 15

it belongs to 15th group elements = (2,8,5)

it's electronic configuration in ground state is

1s2 2s2 2p6 3s2 3px2 3py2 3pz1 valency = 3

p orbital exists in px, py, pz

its electronic configuration in the excited state is

1s2 2s2 2p6 3s1 3px2 3py2 3pz2 valence = 5

hope this helps you.Mark me as BRAINLIEST