Answer:
Alkali Metals
Explanation:
Because they are in group one, but Hydrogen is not an alkali metal.
Huh ion speak that language:/
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As the combustible materials burn, some of the chemical energy is transformed into heat energy, and some are transformed into light energy. Light energy, also known as radiation or electromagnetic energy, is a type of kinetic energy that takes the form of visible light waves, such as the light from a match.
