Question

What are the four principles of Bohr's model?

Answer 1

Answer:

The Bohr model can be summarized by the following four principles: Electrons occupy only certain orbits around the nucleus. ... Each orbit has an energy associated with it. The orbit nearest the nucleus has an energy of E1, the next orbit E2, etc.

Answer 2

The four principles of the Bohr model are as follows:

1) Only specific orbits around the nucleus are occupied by electrons. These orbits are known as "stationary" orbits because they are steady.

2) There is an energy connected with each orbit. The orbit closest to the nucleus, for example, has an energy E1, the orbit next closest E2, and so on.

3) When an electron jumps from a higher to a lower orbit, light is released, and when it jumps from a lower to a higher orbit, light is absorbed.

4)The difference between the two-orbit energies determines the energy and frequency of light emitted or absorbed, for example,

$E(light)$ = $E_{f}$ - $E_{i}$

$n=$$\frac{E(light)}{h}$

h= Planck's constant = $6.627$×$10^{-34} Js$

where "f" and "i" represent final and initial orbits.

Bohr was able to explain the stability of atoms as well as the emission spectrum of hydrogen using these criteria. Only particular orbits were allowed in Bohr's model, which meant only certain energies were feasible. These energies naturally lead to an explanation for the spectrum of hydrogen atoms: