Question

The size of atoms in any group shows a regular increase, the reason being as we go down any group:

• A. The charge on the nucleus regulaly increases
• B. Electrons are added to new shells
• C. Electronegativity regularly decreases
• D. The metallic character of the elements regularly increases

Answer 1

The correct option is B Electrons are added to new shells

Atomic size increases on moving down the group as new shells are being added.