How would you describe the isotopes of hydrogen?

Answer 1

All atoms of a specific element have the same number of protons in their nucleus, but the number of neutrons in the nucleus may vary these are isotopes of that element.

Hydrogen has several possible isotopes, only the first three of these are commonly referred to:

1. hydrogen or protium or hydrogen-1, 1 proton 0 neutrons, stable
2. deuterium or hydrogen-2, 1 proton 1 neutron, stable
3. tritium or hydrogen-3, 1 proton 2 neutrons, radioactive halflife 12.26 years
4. hydrogen-4, 1 proton 3 neutrons, radioactive halflife about 139 yoctoseconds
5. hydrogen-5, 1 proton 4 neutrons, radioactive halflife about 910 yoctoseconds
6. hydrogen-6, 1 proton 5 neutrons, radioactive halflife 290 yoctoseconds
7. hydrogen-7, 1 proton 6 neutrons, radioactive halflife 23 yoctoseconds
8. etc.

Answer 2

Hydrogen has three isotopes: protium (1H), deuterium (2H), and tritium (3H). Protium is the most abundant and consists of one proton and one electron. Deuterium contains one proton, one neutron, and one electron. Tritium has one proton, two neutrons, and one electron.

Answer 3

1. protium - no neutrons
2. deuterium - 1 neutron
3. tritium - radioactive, 2 neutrons