Which element has the largest atomic radius? as n p sb

the element that has the largest  atomic  radius  is

Sb ( Antimony)

Explanation

atomic radius is the distance from center of the nucleus to outermost  shell that contain  electrons.

 Antimony is in atomic number  51 with 2.8.8.8.8.8.8.1 electron  configuration. This implies antimony  has 8 shell that contain electrons  thus it has the largest atomic radius.

Option (d) is the correct answer.

Explanation:

The given elements As, N, P, Sb all are same group 15 elements.

Also, it is known that when we move down a group then there is increase in the size of atom due to increase in number of shells.

Therefore, out of the given elements the order in which they are placed in a group is N, P, As, Sb.

Thus, we can conclude that Sb (antimony) is the element which has the largest atomic radius.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.