Niels Bohr who proposed the Bohr model of atom

Niels Bohr discovery

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Niels Bohr discovery

Niels Bohr discovery improved Rutherford’s nuclear model by suggesting that the electrons revolve in the discrete energy orbits and they do not loose energy while they are in the orbit. Once they move from one orbit to another they emit energy.

Niels Bohr who proposed the Bohr model of atom
Niels Bohr

Niels Bohr 2n2 formula

Electrons are found by 2n2 formula in different shells where n=shell

So n=1 , 2 electron,

n=2, 8 electrons,

n=3, 18 electrons,

n=4, 32 electrons

He also suggested that outermost shell(orbit) cannot accommodate more than 8 electrons.

Energy of electron E= hv where h= plank’s constant  and v is frequency of electron.

C=vλ  where c= speed of light and λ  is wavelength . Thus frequency and wavelength are inversely proportional to each other.

Read about Quantum mechanical model of Atom

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