Bohr Model of the Atom of Hydrogen

**Formula:** H

**Atomic number:** 1

**Relative atomic mass:** 1,008

**Information:** Hydrogen is the lightest and simplest chemical element. It is a colourless, odourless and tasteless light gas. It is flammable but does not support combustion.

**Use:** It is used widely as a source of energy (rocket fuel), a reducing agent in chemical synthesis (synthesis of ammonia, organic synthesis) or in metallurgy.

**Appearance:** Elemental hydrogen (H) is rare on Earth but the most abundant element in the universe. On Earth, it occurs predominantly in the compounds, particularly in water and in organic compounds (the biogenic element).

Bohr's atomic model assumes that electrons move on stationary circular paths with constant energy.

The hydrogen atom consists in two particles: one of a positively charged proton and another one of a negatively charged electron. The proton is in the nucleus and the electron rotates around it.