Question

How n why do atomic radi change as we move from left to right n down a group?

Answer 1

due zeff atomic radii changes and also due to ionisation energy

Answer 2

*⃣❇❇❇❇ANSWER❇❇❇❇❇*⃣

THE ATOMIC RADIUS INCREASES DOWN A GROUP BECAUSE THE NUMBER OF ELECTRONS INCREASES SO THE NUMBER OF SHELLS INCREASES HENCE, THE ATOMIC SIZE INCREASES.
WHILE THE VALENCE ELECTRON REMAINS SAME.

✨✨✨✌✌HOPE IT HELPS ✌✌✨✨✨