The Number of neutrons in Tritium are 2.
Tritium ( 3H )
Tritium comprises 2 neutrons and 1 proton in its nucleus. Small traces of hydrogen 3 or tritium occurs in nature due to the synergy of cosmic rays with atmospheric gases. They are also released in a small amount at the time of nuclear weapons tests. It is radioactive, it decays into helium 3 through beta decay. Hydrogen 3 as an atomic mass of 3.0160492 u.
Number of neutrons = Mass number – Atomic number
3H = 3 – 1
3H = 2