In 1923, Louis de Broglie, a French scientist, hypothesised that : “Every moving matter has a wave associated with it.” He also calculated that these properties are especially significant in
subatomic particles.
De Broglie combine the Einstein and Planck equations and argued that if
∴ E = hv
Where,
And E = mc²
Then, hv = mc²
hc/λ = mc²
or
λ = h/mc
λ = h/p
Beginning in January 1926, Erwin Schrödinger (shrow·duhng·uh), an Austrian scientist, applied the principles of wave mechanics to atoms and developed the quantum mechanical model of the atom.
The quantum mechanical model is both mathematical and conceptual. It keeps the quantized energy levels that Bohr introduced. In fact, it uses four quantum numbers to describe electron energy. These refer to
