White light is a mixture of colours, light from gaseous elements is of one colour, sometimes of just one wavelength (frequency)
nuclear reactions
Some elements produce light because of a change in energy state levels. The color of the light is determined by the difference in energy between the excited state and the ground state.
There are many different tests. For example, if you burn some elements they give of light at very specific wavelengths, called an emission spectrum.
The difference is their wavelengths.
There is no difference.
Difference?? There is no relation.
You can go to sleep with the light on...
The main difference between light and x-rays is that x-rays are radiation.
The difference between light and dark is a rather complicated topic. It involves, with light, their being certain wavelengths present. With darkness, there are no wavelengths present.
The spelling of light.
The black light is in jail
Light is light. Radiant is Radiant.