An atom has electronic configuration 1s²2s²2p⁶3s²3p⁶3d³4s², you will place it in which group?

Options

(a) Fifth
(b) Fifteenth
(c) Second
(d) Third

Correct Answer:

Fifth

Explanation:

The electronic configuration clearly suggest that it is a d-block element (having configuration (n – 1) d¹⁻¹°ns°⁻²) which starts from III B and goes till II B. Hence with d³ configuration it would be classified in the group