Hydrogen has three isotopes, 1H, 2H, and 3H. What is the difference between these three isotopes?

AThe number of protons ranges from 1 to 3.
BThe number of electrons ranges from 1 to 3.
CThe number of neutrons ranges from 0 to 2.
DThe number of protons ranges from 0 to 2.

Verified Answer :

C... The number of neutrons ranges from 1H with 0 neutron, 2H with 1 neutron and 3H with 2 neutrons.

The correct answer is C.

A substance is said to exhibit isotopy if the number of proton and neutron in the nucleus of the atom differs, whille the number of proton and electron are the same. Hydrogen has three isotopes and each of the isotopes has different number of neutron. Hydrogen 1 has no neutron but have 1 proton, hydrogen 2 has 1 neutron and 1 proton and hydrogen 3 has 1 proton and 2 neutrons.