The electron configuration of two elements with similar chemical properties are represented by?
1s22s22p5 and 1s22s22p4
1s22s22p4 and 1s22s22p63s1
1s22s22p63s1 and 1s22s1
1s22s22p4 and 1s22s1
Correct answer is C
No explanation has been provided for this answer.