Atoms And Nuclei Question 419
Question: The energy of hydrogen atom in its ground state is - 13.6 eV. The energy of the level corresponding to the quantum number n is equal 5 is
Options:
A) - 5.40 eV
B) - 2.72 eV
C) - 0.85 eV
D) - 0.54 eV
Show Answer
Answer:
Correct Answer: D
Solution:
- $ A=A_{0}{{( \frac{1}{2} )}^{\frac{t}{{T_{1/2}}}}}\Rightarrow \frac{1}{64}={{( \frac{1}{2} )}^{\frac{60}{{T_{1/2}}}}} $
$ \Rightarrow $ $ E_{5}=\frac{-13.6}{5^{2}}=\frac{-13.6}{25}=-0.54\ eV $
