KnowraDeuteriumLinked fromLinked fromThe 16 pages that link to Deuterium, each with the reason it gives.All 16Broader topic 11Related 3Compared with 2ProtiumCompared with: Its extra neutron makes it heavier than protium while leaving its proton count unchanged.Solid hydrogenCompared with: Its greater mass reduces quantum motion and shifts solid-phase behavior relative to ordinary hydrogen.