Question

which would have the larger radius?
li
li+

Explanation:

• Atomic radius is related to the number of electron shells and the effective nuclear charge.
• Li has 3 electrons with an electron configuration of \(1s^{2}2s^{1}\), having 2 electron shells.
• \(Li^{+}\) is formed when Li loses one electron. Its electron configuration is \(1s^{2}\), having only 1 electron shell.
• As the number of electron shells decreases, the radius generally decreases.

Answer:

Li