Which one of the following species has the electron configuration of 1s22s22p6?
1. Na+
2. O^2-
3. F-
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) All of 1, 2, and 3
E) Neither 1, 2, or 3
Answer: D
Which one of the following species has the electron configuration of 1s22s22p6?
1. Na+
2. O^2-
3. F-
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) All of 1, 2, and 3
E) Neither 1, 2, or 3