Question

Which of the following elements would be most likely to gain an electron when becoming an ion?

A. Chlorine (Cl)
B. Boron (B)
C. Argon (Ar)
D. Potassium (K)

Answer 1

Hey, I believe it is Chlorine. Cl has a charge of -1 so it will gain an electron.

Answer 2

since Cl (Chlorine) has a -1 charge, it will mostly like to be able to gain an electron. chlorine is known to be a part of the halogen group. all elements “want to be” a noble gas. since they are right beside each other, this will allow the halogen to gain an electron since they are neighbors. i hope i helped!! that’s how i learned them. have a great day :).