Among the elements with atomic number 9, 12, 16 and 36 which is highly electropositive ?

Options

A. Element with atomic number 9
B. Element with atomic number 12
C. Element with atomic number 16
D. Element with atomic number 36

Answer

B

Explanation

Z=9,`1s^(2)2s^(2)2p^(5)`
`Z=12,1s^(2)2s^(2)2p^(6)3s^(2)`
`Z=16,1s^(2)2s^(2)2p^(6)3s^(2)3p^(4)`
`Z=36,1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(2)4p^(6)`
Electropositivity decreases along the period while it increases going down the group.