Question

_______ $E_4=-0.85eV$
_______ $E_3=-1.5eV$
_______ $E_2=-3.4eV$
_______ $E_1=-13.6eV$

Consider the electron energy level diagram for hydrogen as shown above.
An electron in the ground state of hydrogen atom has an energy of -13.6eV. and 0 eV is the highest energy level present in a hydrogen atom. Identify which of the following energies not possible by photon emitted from hydrogen?

• A. 1.9 eV
• B. 13.6 eV
• C. 0.65 eV
• D. 11.1 eV
• E. 10.2 eV

Answer 1

The correct option is D 11.1 eV

A photon contains energy that is equal to the difference in energy levels of the levels between which transition took place.

The following are the transitions for the possible photon energies,

$1.9eV$ for $3\to 2$

$13.6eV$ for $\infty \to 1$

$0.65eV$ for $4\to 3$

$10.2eV$ for $2\to 1$