Which isotope of hydrogen (i) does not contain neutrons, (ii) contains equal number of protons and neutrons , (iii) is radioactive.

Which isotope of hydrogen (i) does not contain neutrons, (ii) contains

1.	Which isotope of hydrogen (i) does not contain neutrons, (ii) contains equal number of protons and neutrons , (iii) is radioactive.
Answer» SOLUTION :(i) Protium(II) DEUTERIUM(III) TRITIUM