Question

state the postulates of Bohrs atomic model

Answer 1

Postulates of Niels Bohr Atomic Theory. The important postulates in his theory are, Electrons revolve round the nucleus with definite velocities in concentric circular orbits situated at definite distances from the nucleus. The energy of an electron in a certain orbit remains constant.

Answer 2

Answer:

Explanation:

The BOHR MODEL has an atomic consisting of a small positively charged nucleus orbited by negatively charged electron. here's a closer look at the bohr model which is sometimes called the RUTHERFORD BOHR MODEL.

niels bohr proposed the bohr model of the atom in 1915. the model number of atom is based on the quantum mechanics. the model contains some errors, but it is important because it describes most of the accepted features of atomic theory without all the levels of the modern vision. unlike earlier model bohr model explain the RYDBERG formula for the special emission lines of atomic hydrogen.

main points of bohr model》》

1. electrons Orbits the nucleus in Orbit that have a set size and energy.

2. the energy of the orbit is related to its size .the lowest energy is found in the smallest Orbit.

3. radiations is observed or emitted when an electron move from one Orbit to another.

problems of bohr model》》

1. it violates the Heisenberg Uncertainty Principle because its consider electron to have both are known radius and Orbit.

2. the bohr model provides an incorrect value for the ground state orbital angular momentum.

3. It make poor predictions regarding the specta of large atoms.

4. it does not predict the relative intensities of spectral lines.

5. it does not explain the zeeman effect.