Radioactive elements emit alpha, beta and gamma rays and are characterised by their half-lives. The radioactive isotope of hydrogen is

Radioactive elements emit alpha, beta and gamma rays and are character

1.	Radioactive elements emit alpha, beta and gamma rays and are characterised by their half-lives. The radioactive isotope of hydrogen is
Answer» <P>protium deuterium tritium hydronium SOLUTION :NUCLIDES with n/p (neutron-proton) RATIO gt 1.5 are usually radioactive. For, tritium (n = 2, p =1), it is 2.