Question

the value of `Z_(eff)` for `Li^(+)` is x and the value of `z_(eff)` for H-ataom is y then value of (x+y) is s:
A. 3.4
B. 3.7
C. 2.3
D. none of these

Answer 1

Correct Answer - b
`Li to 1s^(2) `
`sigma=1xx0.30`
`z_("eff")=-0.30=2.7`
` H to 1s^(1)`
`Z_("eff")=1`