Bohr Radius

a_{0} = \frac{4 π ε _{0} ℏ ^{2}}{m _{e} e ^{2}} \approx 5.29 \times 1 0^{- 11} m

The most probable distance between electron and nucleus in a hydrogen atom ground state.

Variables

a_0

Bohr radius

m

\varepsilon_0

Permittivity of free space

F/m

\hbar

Reduced Planck constant

J·s

m_e

Electron mass

kg

e

Electron charge

C

Your notes

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