Identify which among the elements given below loses or gains electrons.
A. Pb
B. Al
C. N
D. I

• A. Al and I are expected to lose electrons while Pb and N are expected to gain electrons.
• B. N and I are expected to lose electrons while Pb and Al are expected to gain electrons.
• C. Al is expected to lose electrons while I, Pb and N are expected to gain electrons.
• D. Al and Pb are expected to lose electrons while I and N are expected to gain electrons.