Question
Question: The energy of an electron in the Ist orbit of H-atom is— 13.6 eV. The possible energy values of the ...
The energy of an electron in the Ist orbit of H-atom is— 13.6 eV. The possible energy values of the excited state for electrons in Bohr orbits of Li2+ ions is/are-
A
–3.4 eV
B
–30.6 eV
C
–13.6 eV
D
Both B & C are correct
Answer
Both B & C are correct
Explanation
Solution
En = –n213.6Z2 for Li2+, En = – n213.6×9
= n2−122.4 eV
If n = 1 , En = – 122.4 eV
If n = 2 , En = – 30.6 eV
If n = 3 , En = – 13.6 eV