How can a solid material be transparent?

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How can a solid material be transparent?

In: Physics

Different molecules will absorb different wavelengths of light, based on the possible energy of the electrons in the molecules. If the light isn’t absorbed, it goes through (is transmitted).

Glass is transparent because there are no possible energy level for its electrons that match visible light. There are some levels for other types of light (like ultravoilet) so those types get blocked.