Question

write postulates of bohr's model of an atom?answer it urgent​

Answer 1

Answer:

According to Bohr's theory , electrons revolve in definite circular orbits around the nucleus and these orbits are designated by the letters K, L, M, N or by the numbers 1, 2 ,3, 4 and so on.

2. As long as the electrons revolve in a particular orbit they can neither gain energy nor loose energy. Such orbits are called as stationary orbits or stationary states.

3. When an electron jumps from an higher orbit to a lower orbit it releases energy in the form of raldiations and when an electron jumps from lower orbit to a higher orbit it absorbs energy in the form of raldiations.

4. The angular momentum of aln electron is an integral multiple of

2π

h

mvr=

2π

nh

5. It explains the stability of an atom and also the line spectrum of hydrogen atom