Is Hydrogen Flammable?


Quick Answer

The element hydrogen is extremely flammable and is often described as the most flammable of all known substances. Hydrogen can be ignited by heat, sunlight or a small spark. When pure hydrogen burns, ultraviolet light rays are emitted, making the flames difficult to view with the naked eye.

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Full Answer

Hydrogen is the most abundantly available element in the universe. The chemical symbol of hydrogen is H, and its atomic number is one. The atomic weight is 1 as well, which makes it the lightest of all elements. Hydrogen is a colorless gas and appears in the first position on the periodic table.

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