Give Electronic configuration of Sodium:
A1s2,2s2,2p6,3s1
B1s2,2s2,2p6,3s2
C1s2,2s2,2p6
DNone of these
Correct answer
A. 1s2,2s2,2p6,3s1
Explanation
1s2,2s2,2p6,3s1 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.