# 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:

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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

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