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Chemistry
Which one of the following is considered as the main postulate of Bohr’s model of atom?
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Q. Which one of the following is considered as the main postulate of Bohr’s model of atom?
Structure of Atom
A
Protons are present in the nucleus
3%
B
Electrons are revolving around the nucleus
20%
C
Centrifugal force produced due to the revolving electrons balances the force of attraction between the electron and the protons
43%
D
Angular momentum of electron is an integral multiple of $\frac{h}{2\pi}$
33%
Solution:
The electron can move only in these circular orbits where the angular momentum is a whole number multiple of$\frac{h}{2\pi}$ or it is quantised.