Predict the position of element having atomic number 72 (Period number and group number)
Predict the position of element having atomic number 72 (Period number and group number)
A. 5, 3
B. 6, 3
C. 6, 4
D. 7, 4
4 views
1 Answers
Correct Answer - C
Electron configuration of 72 At . No. element
`{:([Xe]^(54),4f^(14),5d^(2),6s^(2),therefore"Period no. =6"):}`
G.p. No = 4
4 views
Answered