atomic hydrogen

American  

noun

Chemistry.

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

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Example Sentences

To address this, the research team has introduced a model that predicts the dehydrogenation barriers using easily computable parameters: the crystal Hamilton population orbital of the Mg-H bond and the distance between atomic hydrogen atoms.

From Science Daily • May 17, 2024

With it, they zoomed in on radio waves emitted by atomic hydrogen gas.

From Science Magazine • Dec. 29, 2023

The cosmic radio-frequency spectrum is expected to show a strong absorption signal corresponding to the 21-centimetre-wavelength transition of atomic hydrogen around redshift 20, which arises from Lyman-α radiation from some of the earliest stars1,2,3,4.

From Nature • Feb. 27, 2018

Much of the gas near the Sun is atomic hydrogen.

From Textbooks • Aug. 12, 2015

Even then there was a bit more room for the atomic hydrogen that was simultaneously formed, although twice as much hydrogen as oxygen was produced.

From The Black Star Passes by Campbell, John Wood