If the potential energy of an electron in a particular Bohr orbit of a hydrogen atom is , what are i — Atomic Structure Chemistry Question
Question
If the potential energy of an electron in a particular Bohr orbit of a hydrogen atom is $-3.02 \text{ eV}$, what are its kinetic energy and total energy respectively in that orbit?
Answer: A
💡 Solution & Explanation
In Bohr's model, the relationships between the energies are: Total Energy ($TE$) = $- \text{Kinetic Energy (}KE\text{)}$, and Potential Energy ($PE$) = $2 \times TE = -2 \times KE$. Given $PE = -3.02 \text{ eV}$, we have $TE = \frac{PE}{2} = -1.51 \text{ eV}$ and $KE = -TE = +1.51 \text{ eV}$.
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