Question

Give the postulates of Bohr's theory of atomic model

Answer 1

Answer:

Postulates of Bohr's atomic model

In 1931, Neils Bohr overcame the limitation of Rutherford's model of an atom. The following are the postulates of Bohr's atomic model...

Explanation:

1) Only certain orbits known as discrete or individual orbits are allowed inside an atom.

2) These discrete orbits are known as shells or energy levels and are represented by letters (K,L,M,N) or numbers (1,2,3,4).

3) While revolving around the orbits, the electrons radiate energy.

4) The distribution of electrons in each shell is given by $2n^{2}$ where n= shell number.

5) The outermost shell can have upto 8 electrons only/

6) Electrons lose energy in the form of radiations which moving from one orbit to the other.

Higher orbit to lower orbit= Electrons emit energy

Lower orbit to higher orbit= Electrons absorb energy

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Answer 2

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.

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