Configuration of `5p^(1)` is

The electronic configuration of P (Z=15) is 2, 8, 5, why is the valency of phosphorus is 3 and not 5 ?

In the long form of the periodic table, the valence shell electronic configuration of 5s^(2) 5p^(4) corresponds to the element present in:

The configuration of 1s^(2)2s^(2)2p^(5)3s^(1) shows

In the long form of the periodic table the valence shell electronic configuration of 5s^(2)5p^(4) corresponds to the element present in:

In the long form of the periodic table the valence shell electronic configuration of 5s^(2)5p^(4) corresponds to the element present in:

The configuration is 1s^(2) 2s^(2) 2p^(5) 3s^(1) shows :