MolSynapsequestion bank

MolSynapse / Question bank / Periodic Table and Periodicity / Effective nuclear charge and shielding, Slater's rules

NEET levelSingle correct optionDifficulty 1 of 3pt060

Using Slater's rules ( $0.85$ for each electron of the $(n - 1)$ shell), the effective nuclear charge on the $2 s$ valence electron of lithium ( $Z = 3$ ) is:

A2.30
B0.60
C1.30
D1.00

Answer: C

The two

1 s

electrons lie in the

(n - 1)

shell, so

S = 2 \times 0.85 = 1.70

and

Z^{*} = 3 - 1.70 = 1.30

.

Practice Periodic Table and Periodicity More on Effective nuclear charge and shielding, Slater's rules

Previous questionNext question

More questions on Effective nuclear charge and shielding, Slater's rules