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atomic hydrogen

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noun Chemistry.

hydrogen in the form of single atoms, rather than molecules, which makes it extremely reactive.

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QUIZ YOURSELF ON “THEIR,” “THERE,” AND “THEY’RE”

Are you aware how often people swap around “their,” “there,” and “they’re”? Prove you have more than a fair grasp over these commonly confused words.
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Which one of these commonly confused words can act as an adverb or a pronoun?
Also called active hydrogen.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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