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...rned out be a Soviet spy. All participants agreed that the ignition of the deuterium requires so much energy that it can only be delivered by a conventional ato ...ve [[isotope]] tritium would be needed to start a fusion chain reaction of deuterium nuclei. Shortly after the conference, Teller drafted a conference report th

===Deuterium, ³He, ⁴He, and ⁷Li abundances=== ...unts for the abundant distribution of the light nuclear isotopes hydrogen, deuterium, helium-3, helium-

...k matter then the early universe would have had to produce more helium and deuterium than could possibly exist. Possible types of DM are:

..., while an ideal gas consisting of D (= ²H) atoms is fermionic. Deuterium consists of three fermions: a proton, a neutron, and an electron. Simultane

...ymmetrisation]] on the substrate (replacing hydrogen by [[isotope labeling|deuterium]]) it can be demonstrated that the reaction proceeds not through the symmet

<tr><td>[[Deuterium]]</td><td>²H or D</td><td>1</td><td>1.44 e-6</td>

...rotium isotope has been replaced by the [[deuterium isotope]] of hydrogen. Deuterium is a stable isotope of hydrogen with a natural abundance in the oceans of [

...rotium isotope has been replaced by the [[deuterium isotope]] of hydrogen. Deuterium is a stable isotope of hydrogen with a natural abundance in the oceans of [

...in [[organic chemistry]]. Briefly, replacing normal hydrogen (protons) by deuterium within a chemical compound causes the rate of molecular vibration (C-H, N-H *H-2 (deuterium), the stable isotope of hydrogen, is a stable tracer, the concentration of

...er then the early universe would have had to produce more [[helium]] and [[deuterium]] than could possibly exist—not enough room for all of it.

...external "neutron gun", essentially a miniature linear accelerator using a deuterium-tritium reaction; they look vaguely like hair dryers attached to the outsid

...rial milling tools. Sometimes, water containing an isotope of hydrogen ([[Deuterium]]) and is referred to as "heavy water", is used for that same purpose of co

...rogen has a nucleus consisting only of a proton, the fairly rare isotope [[deuterium]] has a nucleus that contains one proton and one neutron, and the rarer iso

* [[Deuterium]]</small>

...t consider an example of the latter, the reaction of [[tritium]] (T) and [[deuterium]] (D) giving the isotope ⁴He and a neutron (n). This is the