Hydrogen
1.0 Basic Information
2.0 Atomic and Physical Properties of Hydrogen (reference: NCERT)
3.0 Dihydrogen
4.0 Physical Properties
5.0 Chemical Properties
6.0 Uses of Dihydrogen
7.0 Compounds of Hydrogen
8.0 Hard and Soft Water
9.0 Hydrogen Peroxide
10.0 Volume strength of Hydrogen Peroxide
1.2 Isotopes of Hydrogen
Hydrogen has three isotopes:
- Protium, ${}_1^1H$
- Deuterium, ${}_1^2H$ or $D$ and
- Tritium, ${}_1^3H$ or $T$.
They have different mass number which arises because the nucleus contains a different number of neutrons. Ordinary hydrogen, protium, has no neutrons, deuterium (also known as heavy hydrogen) has one and tritium has two neutrons in the nucleus.