Question

Does an atom have colour ?​

Answer 1

Answer:

If you define "having a color" very narrowly such that it only includes certain mechanisms, then atoms do not have color. If you define "having a color" more broadly, then atoms do have a color. Let us look at the different ways an object can reflect or emit visible light and apply each one to an atom

Answer 2

atoms (as opposed to molecules) do not have colors - they are clear except under special conditions..

molecules have colors

you could not see the color of one atom or molecule - not because it is too small - but because the color of one atom would be too faint.