Question

For absorption and emission spectra of atoms which one of the following particle changes energy levels?

• A. Alpha
• B. Electron
• C. Neutron
• D. Photon
• E. Proton

Answer 1

The correct option is B Electron

Electrons are presents in different energy levels of the atoms. These electrons from lower energy levels jump to the higher energy levels during absorption spectra whereas transition of electrons from higher energy level to lower energy level takes place in emission spectra via emitting a photon.