Question

An element in the halogen family with an electron configuration of 1s^22s^22p^63s^23p^5, contains ____ valence electrons and has a common ionic charge of ____?

A. 7, +1
B. 7, -1
C. 5, -3
D. 5, +5

Answer 1

B. 7,-1

Step-by-step explanation:

The element stated above is Chlorine. Chlorine is in the halogen family, and all halogen family contains 7 valence electrons and -1 ionic charge.