Question

An electron in a hydrogen atom jumps from orbit n = 1 to n = 2. Which of these has occurred in this process? a)a photon of energy 2.55 eV is absorbedb)a photon of energy 10.2 eV is absorbedc)a photon of energy 1.89 eV is emitted

Answer 1

The difference in energy between orbits n = 1 and n = 2 is 10.2 eV, and when an electron moves from a lower orbit to a higher one, it absorbs energy, or in this case, a photon.

Answer: b) a photon of energy 10.2 eV is absorbed