Question
The order of filling of electrons in the orbitals of an atom will be
A.
$$3d,4s,4p,4d,5s$$
B.
$$4s,3d,4p,5s,4d$$
C.
$$5s,4p,3d,4d,5s$$
D.
$$3d,4p,4s,4d,5s$$
Answer :
$$4s,3d,4p,5s,4d$$
Solution :
The sequence of energy level can be remembered by the systematic diagram as shown below
Hence, the correct order is
$$1s,2s,2p,3s,3p,4s,3d,4p,5s,$$ $$4d,5p,4f,5d,6p,7s.......$$
The sequence of energy level can be remembered by the systematic diagram as shown below
Hence, the correct order is
$$1s,2s,2p,3s,3p,4s,3d,4p,5s,$$ $$4d,5p,4f,5d,6p,7s.......$$