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equations and scientists involving the quantum theory of electrons

Energy of a quantum

E quantum = hν

Energy of a photon

E photon = hν

de Broglie equation

λ=h/mv. the variable λ is wavelength, the variable h is planck's constant, the variable m is mass of the particle and the variable v is frequency

aufbau principle

an electron occupies the lowest-energy orbital that can receive it

Pauli exclusion principle

a maximum of two electrons may occupy a single atomic orbital, but only if the electrons have opposite spins

Hund's rule

one electron per orbital of equivalent energy before doubling up

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