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longship

(40,416 posts)
1. One has to use deuterium.
Fri Dec 11, 2015, 03:29 PM
Dec 2015

Ordinary hydrogen has no neutron with which to make helium, which requires two of them. Deuterium has the required neutron in its nucleus.

One has to use deuterium. longship Dec 2015 #1
Deuterium is relatively easy to concentrate, though muriel_volestrangler Dec 2015 #2
Yup! longship Dec 2015 #3
3H, not 3He. nt thereismore Dec 2015 #4
It both works, one reaction throws away a neutron, the other reaction throws away a proton jakeXT Dec 2015 #5
Nice, thanks. nt thereismore Dec 2015 #6
Elemental helium has no neutrons. Angleae Dec 2015 #7
AFAIK, almost all helium has 2 neutrons. longship Dec 2015 #8
On earth yes. In space no. Angleae Dec 2015 #9
Helium-2 is extremely unstable. longship Dec 2015 #10
Beta decay takes care of that. Treant Dec 2015 #11
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