Question

The emission line spectrum of atomic hydrogen arises from the energies given out when

• A. Hydrogen atoms combine together to form molecules.
• B. Hydrogen atoms lose electrons to form ions.
• C. Electrons move to energy levels closer to the nuclei.
• D. Electrons move to energy levels further away from the nuclei.

Answer 1

The correct option is C

Electrons move to energy levels closer to the nuclei.

When electrons jump back from higher energy levels to lower energy levels closer to nucleus, difference of energy between the two energy levels is liberated in form of electromagnetic radiation.