Question

Alkali metals and their Bunsen impart characteristic color to the flame. Explain​

Answer 1

Alkali metals impart characteristic colours to the flame due to low ionisation enthalpy, when an alkali metal or its salt is heated in a flame, the valence electrons are excited to higher energy level.

Answer 2

Answer:

the alkali metals and their salts impart characteristic colour to an oxidizing flame This is because the heat from the flame excites the outermost orbital electron to a higher energy level When the excited electron comes back to the ground state , there is emission of radiation in the visible region.