Atoms · Class 12 · CBSE · Science Physics
The total energy of an electron in the ground state of a hydrogen atom is -13.6text{ eV}. What is its kinetic energy in that state?
Practice question from Atoms (Class 12 · CBSE · Science Physics), with the correct answer and a step-by-step solution.
easy · MCQ · Q-ED58A5
The total energy of an electron in the ground state of a hydrogen atom is . What is its kinetic energy in that state?
- A.
- B.+13.6\text{ eV}Correct answer
- C.-27.2\text{ eV}
- D.+6.8\text{ eV}
Solution
For a Bohr orbit, the total energy is the negative of kinetic energy , and half of potential energy . Thus, .
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