In a period, atom with smallest radius generally is:

Question

In a period, atom with smallest radius generally is: (A) Chalcogen (B) Halogen (C) Aerogen (D) Pnicogen

Tardigrade Admin · Accepted Answer

In a period on moving left to right Zeffective increases, so atomic size decreases. For inert gases, Van der waal radius is considered, so it is bigger in size as compared to halogens.

Q. In a period, atom with smallest radius generally is:

Chalcogen

Halogen

Aerogen

Pnicogen

In a period on moving left to right Z_effective increases, so atomic size decreases.
For inert gases, Van der waal radius is considered, so it is bigger in size as compared to halogens.