Question

write postulates of bohrs atomic model? ​

Answer 1

Explanation:

The Bohr model postulates that electrons orbit the nucleus at fixed energy levels. Orbits further from the nucleus exist at higher energy levels. When electrons return to a lower energy level, they emit energy in the form of light.

Answer 2

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Bᴏʜʀ's Aᴛᴏᴍɪᴄ Mᴏᴅᴇʟ :

➻ Electrons always move around the nucleus only in circular orbits. These orbits are known as stationary states.

➻ As long as electrons remain in these stationary states, there is no absorption or emission of radiation.

➻ Each stationary state is associated with a definite quantity of energy. Therefore, stationary states are also called energy levels or energy shells. Further the orbit from njcleus, the greater the energy associated with it. These shells are K, L, M, N.... etc or numbered as 1,2,3,4....

➻The number of such stationary states or energy levels is determined by the quantum condition that the integral multiple of

$\frac{h}{2\pi} \\ i.e \: \: me \: vr =n . \frac{h}{2\pi}$

Where, h is planck's constant and n=1,2,3...etc,

me is the mass of electron and r is radius.

➻ The most stable state of an atom is one which electrons are in lowest energy states and this state is called ground state.

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