Question

among C,N,O,F which has least qtomic radius​

Answer 1

Florine has least atomic radius, Atomic radius is inversely proportional to the effective nuclear charge (Zeff) , More the Zeff less will be the atomic radius and we know florine has highest Zeff among these because all are 2nd period elements and in a period Zeff increases

Answer 2

Answer:

atomic radius of smallest

c > N > O > F