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 $ .



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