Question

The bright-line spectrum of sodium is produced when energy is

Answer 1

Answer : Option C) Released as electrons move from higher to lower electron shells.

Explanation :

The bright-line spectrum of sodium is produced when energy the excited electron from the higher energy level comes back to the lower energy level by releasing energy in the form of light, this creates a bright-light spectrum of sodium.

Electrons in the atoms absorb the incident light of certain energies which results in a electron transition from the ground state or it can be also from a lower-energy excited state to a higher-energy level excited state this gives an absorption spectrum, which has dark lines in the same position whereas the bright lines in the emission spectrum of  that particular element.

Answer 2

A bright-line spectrum of sodium is produced when energy is absorbed as electrons move from higher to lower electron shells. Electrical energy tends to excite electrons causing them to have this reaction. When an electron is excited with electricity the electrons tend to move up a shell. Moving up a shell makes the electrons unstable. Eventually, these unstable electrons will come back down a shell and what will be left are emissions of photons. These photons form different wavelengths resulting to a bright-line spectrum.