Question

$N,P,As,Sb,Bi$ elements belong to:

• A. VA Group
• B. IV A Group
• C. VII A Group
• D. VIII A Group

Answer 1

Answer: (A)

VA Group

The VA group of the periodic group consists of nonmetals such as nitrogen, phosphorous, antimony, bismuth, arsenic.

The electronic configuration of elements given in question are:

N- $1s^{2}2s^{2}2p^3$

P-$1s^{2}2s^{2}2p^{6}3s^{2}2p^3$

As- $3d^{10}4s^{2}4p^3$

Sb- $4d^{10}5s^{2}5p^3$

Bi- $4f^{14}5d^{10}6s^{2}6p^3$

In all the configurations, the valence shell of the element has 5 electrons and as the group number is decided by number of valence shell electrons. That's why elements have group number VA.