Question

Why do different elements emit different flame colours when heated by the same non-luminous flame?

Answer 1

Heya....☺️☺️
:
Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light. ... Every element has a differentnumber of electrons and a different set of energy levels. Thus, each element emits its own set of colours..✌️✌️

Answer 2

1) All the materials are made up of atoms and molecules. These atoms and molecules possess certain fixed energy.

2) An atom or molecule having lowest possible energy is said to be in ground state.

3) When we heat the materials the electrons of these atoms gain energy and move to excited states.

4) An atom of molecule in excited state can emit light to lower its energy in order to get stability and come back to ground state.

5) Light emitted in such process has certain fixed wavelength for one kind of atoms.

6) The light emitted by different kinds of atoms is different because the excited states electrons will go are different. So different elements produce different flame colours.