500
Tritium, 3H, is a rare radioactive Isotope of hydrogen. A tritium atom has 1 proton, 2 neutrons, and 1 electron. Tritium decays through beta decay with a half-life of 12.32 years. A tritium atom differs from a common hydrogen atom in....
the # of protons, the # of neutrons, the # of electrons, Electric charge
What is .....# of neutrons