describe bohrs model of atom how did neils bohr explain the stability of atom
Answers
Answered by
4
The Bohr model consists of four principles:
1)
Electrons assume only certain orbits around the nucleus. These orbits are stable and called "stationary" orbits.
2)
Each orbit has an energy associated with it. For example the orbit closest to the nucleus has an energy E1, the next closest E2 and so on.
3)
Light is emitted when an electron jumps from a higher orbit to a lower orbit and absorbed when it jumps from a lower to higher orbit.
4)
The energy and frequency of light emitted or absorbed is given by the difference between the two orbit energies, e.g.,
E(light) = Ef - Ei
n = E(light)/h
h= Planck's constant = 6.627x10-34 Js
where "f" and "i" represent final and initial orbits.
With these conditions Bohr was able to explain the stability of atoms as well as the emission spectrum of hydrogen. According to Bohr's model only certain orbits were allowed which means only certain energies are possible. These energies naturally lead to the explanation of the hydrogen atom spectrum:
2
Bohr's model was so successful that he immediately received world-wide fame. Unfortunately, Bohr's model worked only for hydrogen. Thus the final atomic model was yet to be developed.
1)
Electrons assume only certain orbits around the nucleus. These orbits are stable and called "stationary" orbits.
2)
Each orbit has an energy associated with it. For example the orbit closest to the nucleus has an energy E1, the next closest E2 and so on.
3)
Light is emitted when an electron jumps from a higher orbit to a lower orbit and absorbed when it jumps from a lower to higher orbit.
4)
The energy and frequency of light emitted or absorbed is given by the difference between the two orbit energies, e.g.,
E(light) = Ef - Ei
n = E(light)/h
h= Planck's constant = 6.627x10-34 Js
where "f" and "i" represent final and initial orbits.
With these conditions Bohr was able to explain the stability of atoms as well as the emission spectrum of hydrogen. According to Bohr's model only certain orbits were allowed which means only certain energies are possible. These energies naturally lead to the explanation of the hydrogen atom spectrum:
2
Bohr's model was so successful that he immediately received world-wide fame. Unfortunately, Bohr's model worked only for hydrogen. Thus the final atomic model was yet to be developed.
Answered by
0
Answer:
According to Bohr Atomic model, a small positively charged nucleus is surrounded by revolving negatively charged electrons in fixed orbits. He concluded that electron will have more energy if it is located away from the nucleus whereas the electrons will have less energy if it located near the nucleus.
Explanation:
Similar questions