deuterium

[ doo-teer-ee-uhm, dyoo- ]

Phonetic (Standard)IPA

noun

, Chemistry.

an isotope of hydrogen, having twice the mass of ordinary hydrogen; heavy hydrogen. : 2 H, D; : 2.01; : 1.

deuterium

/ djuːˈtɪərɪəm /

a stable isotope of hydrogen, occurring in natural hydrogen (156 parts per million) and in heavy water: used as a tracer in chemistry and biology. Symbol: D or ²H; atomic no: 1; atomic wt: 2.014; boiling pt: –249.7°C

deuterium

/ do̅o̅-tîr′ē-əm /

An isotope of hydrogen whose nucleus has one proton and one neutron and whose atomic mass is 2. Deuterium is used widely as a tracer for analyzing chemical reactions, and it combines with oxygen to form heavy water.
Also called heavy hydrogen
See Note at heavy water

1933; < Greek deúter ( os ) second ( deutero- ) + -ium

C20: New Latin; see deutero- , -ium ; from the fact that it is the second heaviest hydrogen isotope

From that, they extracted the ratio of the number of deuterium atoms to the number of hydrogen atoms.

They found that there are roughly 1,900 hydrogen atoms for each deuterium atom in the water on Comet 67P.

However, even that ginormous difference still shows about three times the amount of deuterium than we see on our planet.

One chemical test involves measuring the relative amount of deuterium in water.

For example, a common type of meteorite has similar mineral content to Earth, but a lot less deuterium.

Deuterons or alpha particles are obtained in a similar fashion using deuterium or helium gas in place of hydrogen.

"It's true that one of the possibilities in building a hydrogen bomb concerns deuterium," the scientist said.

Well, heavy water is made of one atom of oxygen plus two atoms of deuterium, which is the first isotope of hydrogen.

Then, for a considerably higher price, he would undertake to collect a sample of the deuterium they were using.

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