[Answer] How many neutrons are there in the most common isotope of hydrogen?

Answer: Zero

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How many neutrons are there in the most common isotope of hydrogen? Isotopes of hydrogen - Wikipedia Stable nuclide - Wikipedia Isotope - Wikipedia Isotope - Simple English Wikipedia the free encyclopedia H (atomic mass 3.01604928199(23) Da) is known as tritium and contains one proton and two neutrons in its nucleus. It is radioactive decaying into helium-3 through β− decay with a half-life of 12.32 years. Trace amounts of tritium occur naturally because of the interaction of cosmic rays with atmospheric gases. Tritium has also been released during nuclear weapons tests. It is used in thermonuclear fusion weapons as a tracer in isotope geochemistry and specialized in self-powered lighting devices. H (atomic mass 3.01604928199(23) Da) is known as tritium and contains one proton and two neutrons in its nucleus. It is radioactive decaying into helium-3 through β− decay with a half-life of 12.32 years. Trace amounts of tritium occur naturally because of the interaction of cosmic rays with atmospheric gases. Tritium has also been released during nuclear weapons tests. It is used in thermonuclear fusion weapons as a tracer in isotope geochemistry and specialized in self-powered lighting devices. Protium the most common isotope of hydrogen. It is special because it is the only isotope that has no neutron. Protium is the most common isotope of hydrogen. It...

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