Atomic Structure Question 2
Question: The energy of electron in hydrogen atom in its grounds state is -13.6 eV. The energy of the level corresponding to the quantum number equal to 5 is [Pb. CET 2002]
Options:
A) -0.54 eV
B) - 0.85 eV
C) - 0.64 eV
D) - 0.40 eV
Show Answer
Answer:
Correct Answer: A
Solution:
Energy of ground stage $ (E_0) $ = $ -13.6eV $ and energy level = 5
$ E_5=\frac{-13.6}{n^{2}}eV=\frac{-13.6}{5^{2}} $ = $ \frac{-13.6}{25}=-0.54eV $ .
