Question

Atomic size ___________ in a period due to ______ in nuclear charge.

• A. increases, increase
• B. decreases, increase
• C. increases, decrease
• D. decreases, decrease

Answer 1

The correct option is B decreases, increase

Atomic size decreases in a period due to the increase in nuclear charge.

Starting elements have less nuclear charge, but last elements have more nuclear charge and attract more electrons towards the nucleus. This decreases atomic size.