Atoms And Nuclei Question 274

Question: As per Bohr model, the minimum energy (in eV) required to remove an electron from the ground state of doubly ionized Li atom (Z=3) is

Options:

A) 1.51

B) 13.6

C) 40.8

D) 122.4

Show Answer

Answer:

Correct Answer: D

Solution:

  • En=13.6(Z)2(n2)eV Therefore, ground state energy of double ionized lithium atom (Z=3, n=1) will be E1=(13.6)(3)2(1)2=122.4eV
    Ionization energy of an electron in ground state of doubly ionized lithium atom will be 122.4eV


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