Which is the correct electron configuration for the element Molybdenum (Mo)?

Which is the correct electron configuration for the element Molybdenum (Mo)?

Which is the correct electron configuration for the element Molybdenum (Mo)?




a. 1s2 2s2 2p6 3s2 3p6 4s2 3d4
b. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s6
c. 1s2 2s2 2p6 3s2 3p6 4s2 4d10 4p6 5s2 5d4
d. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d4




Answer: D