Atoms And Nuclei Question 58
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 [IIT 1997 Re-Exam; MH CET 2000]
Options:
A) 1.51
B) 13.6
C) 40.8
D) 122.4
Show Answer
Answer:
Correct Answer: D
Solution:
$ E=-Z^{2}\times 13.6\ eV $ $ =-9\times 13.6\ eV=-122.4\ eV $ So ionisation energy = + 122.4 eV.
