How many neutrons are in the atom of Hydrogen?

Answer 1

The number of neutrons in a hydrogen atom will depend on which isotope of hydrogen we consider. Not all hydrogen atoms have the same number of neutrons. The vast majority of hydrogen atoms (over 99.98%) have no neutrons at all. Some have 1 (and this is called deuterium) and some have 2 (called tritium). These two isotopes occur naturally but are rare, as can be seen.

To determine the number of neutrons in an atom, you must use the mass number, which is the sum of the number of protons and the number of neutrons. Since the atomic number of the element (for H, the atomic number is 1) tells you the number of protons, you can find the number neutrons by subtraction.

See the Related Questions to the left for how to count the number of protons, neutrons and electrons in any atom of any element.

Answer 2

Hydrogen typically has 0 neutrons in its nucleus. It is the only element that usually exists without any neutrons.

Answer 3

Hydrogen normally does not have any neutrons.

Answer 4

None, the hydrogen nucleus is just one proton

Answer 5

None, it is the only element which is stable without any neutrons.

Answer 6

You need to subtract the atomic number and the mass to get the number of neutrons

Answer 7

1

Answer 8

zero

Answer 9

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