[单选题]
A neutral atom has an elzpod4 , c6.9ge nx:areectron configuration ohhib8+) e j51cm2h2tak c ;upmf $1s^22s^22p^6$. If a neutral atom holds one additional electron, what is the ground state configuration?
A. $1s^22s^22p^63s^1$
B. $1s^22s^22p^7$
C. $1s^22s^32p^6$
D. none of the given answers
Post time 2024-1-22 00:52:27