Question

The ground state energy of hydrogen atom is $-13.6eV$. What are the kinetic and potential energies of the electron in this state?

Answer 1

Ground state energy of hydrogen atom,
$E=-13.6eV$
This is the total energy of a hydrogen atom. Kinetic energy is equal to the negative of the total energy.
Kinetic energy $=E=-(-13.6)=13.6eV$
Potential energy is equal to the negative of two times of kinetic energy.
Potential energy $=-2\times \left(13.6\right)$
$=-27.2eV$
Final Answer: $13.6eV;-27.2eV$