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A comment on Joachim Roenneberg, who foiled Nazi nuclear plan, has died. Parent comment

Re:Joachim Roenneberg, who foiled Nazi nuclear plan, has died by flashman on Monday October 22, 2018 @01:14AM (#18272341)
Correct. A greater fraction of its weight is hydrogen due to the extra neutron, but it contains the same number of hydrogen atoms.

Heavy water masses 20g/mol versus 18g/mol for regular water.

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