Question

Atomic radius of sodium is more than the atomic radius of chlorine​

Answer 1

Answer:

cl has more electron affinity and electronegativity than sodium

Answer 2

Answer:

As we move from left to right across a period, the nuclear charge increases and the number of energy shells remain constant. Hence, the atomic radius decrease from right to left in a period. Sodium is located towards the left of chlorine in period 3, and hence has larger atomic radius.

Hope it helps!