Question

Of the four processes indicated below, indicate which are radiative processes:

a) Absorption
b) Fluorescence
c) Vibrational relaxation
d) Internal conversion

Answer 1

Absorption and fluorescence are radiative processes, while vibrational relaxation and internal conversion are non-radiative processes.

Step-by-step explanation:

Of the four processes listed, absorption and fluorescence are radiative processes.

Absorption is the process by which atoms or molecules absorb energy from photons of specific wavelengths, causing their electrons to transition to higher energy levels.

Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It occurs when excited atoms or molecules return to their ground state and emit photons of lower energy.

Vibrational relaxation and internal conversion, on the other hand, are non-radiative processes that involve the conversion of energy into other forms such as molecular vibrations or heat.