Question

3. Which of the following is the full electron configuration for a neutral atom of
manganese?
a. 1s 2s 2p 3s 3p6 482 3d 4p2
b. 1s 2s 2p 3s 3p 4s2 3d
c. 1s 2s 2p 3p 452 4p5
d. 1s 2s 2p 3s 3p 482 4p5

Answer 1

1s^2 2s^2 2p^6 3s^2
I hope this helps.