Question

which ion has the largest radius? a)NA b)mg 3)H 4)AL

Answer 1

The radius of H is 53 · 10 ^− 12 (m);
The radius of AL is 118 · 10 ^− 12(m)
The radius of Mg is 145 · 10^ − 12 (m)
The radius of Na is 190 · 10 ^− 12 (m); so the largest radius will be in Na.