Question

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

a
1s22s22p63s23p64s23d4
b
1s22s22p63s23p64s23d104p65s6
c
1s22s22p63s23p64s24d104p65s25d4
d
1s22s22p63s23p64s23d104p65s24d4

Answer 1

The correct answer is option d "1s22s22p63s23p64s23d104p65s24d4".

Step-by-step explanation:

The electron configuration of an element is given by the distribution of its electrons in their different orbitals. In the case of Molybdenum (Mo), it has a total of 42 electrons, distributed in 10 orbitals. The correct electron configuration of Molybdenum (Mo) is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d4, where the last number in each orbital represents the number of electrons (2 + 2 + 6 + 2 + 6 + 2 + 10 + 6 + 2 + 4 = 42).

Answer 2

The correct electron configuration for the element Molybdenum (Mo) is;

a

1s22s22p63s23p64s23d4

b

1s22s22p63s23p64s23d104p65s6

c

1s22s22p63s23p64s24d104p65s25d4

d

1s22s22p63s23p64s23d104p65s24d4