Predict the position of element having atomic number 72 (Period number and group number)

Options

A. 5, 3
B. 6, 3
C. 6, 4
D. 7, 4

Answer

C

Explanation

Electron configuration of 72 At . No. element
`{:([Xe]^(54),4f^(14),5d^(2),6s^(2),therefore"Period no. =6"):}`
G.p. No = 4