Atomic hydrogen
hydrogen in the form of single atoms, rather than molecules, which makes it extremely reactive.
Historical Examples
The atomic hydrogen reaction stores more energy per gram than any other chemical reaction known.
The Black Star Passes John W Campbell
The atomic hydrogen tanks were full, and under the ship’s own power the oxygen tanks were filled and the batteries charged.
The Black Star Passes John W Campbell
The typical reddish flame of atomic hydrogen, he knew, would be instantaneously recognizable.
The Black Star Passes John W Campbell
I was wondering if we could use Wade’s system of storing the atomic hydrogen in solution.
The Black Star Passes John W Campbell
They had wanted action, but they had no weapons except their invisibility and the atomic hydrogen.
The Black Star Passes John W Campbell
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- Atomic mass unit
Also called dalton. a unit of mass, equal to 1/12 (0.0833) the mass of the carbon-12 atom and used to express the mass of atomic and subatomic particles. (formerly) a unit of mass, equal to 1/16 (0.0625) the mass of an oxygen atom having atomic mass 16. Abbreviation: amu, AMU. noun a unit of mass […]
- Atomic number
the number of positive charges or protons in the nucleus of an atom of a given element, and therefore also the number of electrons normally surrounding the nucleus. Symbol: Z. Abbreviation: at. no.; Historical Examples The number found in this way is one less than the atomic number. A Brief Account of Radio-activity Francis Preston […]
- Atomic orbital
See under (def 2). of or relating to an . Physics, Chemistry. a wave function describing the state of a single electron in an atom (atomic orbital) or in a molecule (molecular orbital) the electron in that state. adjective of or denoting an orbit (of a motorway or major road circuit) circling a large city […]
- Atomic pile
(def 4). Historical Examples Trailing the wheel ten miles off, was the atomic pile, directly attached to its anchor tube. Where I Wasn’t Going Walt Richmond The atomic pile levers were still at their proper calibration. Atom Drive Charles Louis Fontenay This ship is powered by a nuclear reactor—in other words, an atomic pile. Rip […]
- Atomic power
. Historical Examples As we now realize, atomic power cannot be utilized on a minute scale. This Crowded Earth Robert Bloch Ilg located an atomic power source, and fed the data to Pid. Keep Your Shape Robert Sheckley He wrote: Feudal anachronisms and atomic power, side by side. Teething Ring James Causey They had landed […]