Isotopes of Hydrogen

HYDROGEN
Isotopes of Hydrogen
	ISOTOPES Nuclei of the same element having same atomic number but different mass number are known as isotopes. OR Nuclei of same element having same number of proton but different number of neutron are knows as isotopes. Example 17Cl35 , 17Cl37 6C12 , 6C13 ISOTOPES OF HYDROGEN There are three isotopes of hydrogen. Protium Deuterium Tritium Protium Ordinary hydrogen is knows as protium . It has one electron ,one proton but it has no neutron. Mass number : 1 Charge number : 1 Symbol : 1H1 Percentage in natural hydrogen 99.98% Structure Deuterium Heavy hydrogen is known as deuterium. It has one electron one proton and one neutron. Mass number: 2 Charge number: 1 Symbol: 1H2 or D Percentage In Natural Hydrogen 0.0156% Ratio Protium:Deturium =1:15000 Structure Heavy water(D2O) consists of deuterium isotope of hydrogen. TRITIUM It has one electron, one proton and two neutrons. Mass number : 3 Charge number : 1 Symbol : 1H3 or 1T3 Percentage in natural hydrogen 4 X 10-15 % It is a radioactive isotope. It emits B-rays. It has a half life of 12.5 years. It is present in traces. Structure