As an atom, it is called deuterium and as an isotope of hydrogen it has an abundance of 1.5 x 10-4 compared to 0.99985 for ordinary hydrogen. ... It's stability is remarkable since the free neutron is unstable, undergoing beta decay with a halflife of 10.3 minutes.
Is deuterium stable or unstable?
Deuterium is a stable isotope of hydrogen, consisting of 1 proton, 1 neutron and 1 electron.
Which is more stable hydrogen or deuterium?
Of these, 7H is the most stable, and 5H is the least. Hydrogen is the only element whose isotopes have different names that remain in common use today: the 2H (or hydrogen-2) isotope is deuterium and the 3H (or hydrogen-3) isotope is tritium. The symbols D and T are sometimes used for deuterium and tritium.
