Describe bohors model of the atom . how did he explain the stability of atom ?
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The Bohr Model is a planetary model in which the negatively-charged electrons orbit a small, positively-charged nucleus similar to the planets orbiting the Sun (except that the orbits are not planar). The gravitational force of the solar system is mathematically akin to the Coulomb (electrical) force between the positively-charged nucleus and the negatively-charged electrons.
Main Points of the Bohr Model
1.Electrons orbit the nucleus in orbits that have a set size and energy.
2.The energy of the orbit is related to its size. 3.The lowest energy is found in the smallest orbit.
4.Radiation is absorbed or emitted when an electron moves from one orbit to another.
Bohr Model of Hydrogen
The simplest example of the Bohr Model is for the hydrogen atom (Z = 1) or for a hydrogen-like ion (Z > 1), in which a negatively-charged electron orbits a small positively-charged nucleus.Electromagnetic energy will be absorbed or emitted if an electron moves from one orbit to another.
Only certain electron orbits are permitted. The radius of the possible orbits increases as n2, where n is theprincipal quantum number. The 3 → 2 transition produces the first line of theBalmer series. For hydrogen (Z = 1) this produces a photon having wavelength 656 nm (red light).
Main Points of the Bohr Model
1.Electrons orbit the nucleus in orbits that have a set size and energy.
2.The energy of the orbit is related to its size. 3.The lowest energy is found in the smallest orbit.
4.Radiation is absorbed or emitted when an electron moves from one orbit to another.
Bohr Model of Hydrogen
The simplest example of the Bohr Model is for the hydrogen atom (Z = 1) or for a hydrogen-like ion (Z > 1), in which a negatively-charged electron orbits a small positively-charged nucleus.Electromagnetic energy will be absorbed or emitted if an electron moves from one orbit to another.
Only certain electron orbits are permitted. The radius of the possible orbits increases as n2, where n is theprincipal quantum number. The 3 → 2 transition produces the first line of theBalmer series. For hydrogen (Z = 1) this produces a photon having wavelength 656 nm (red light).
mohit449:
plse tell how he explain for the stability of atom
the electron could revolve around the nuclear in only certain orbit( certain energy level) each orbit having a different radius
when an electron revolving around the particular orbit or particular energy level around the nucleus the electron does not radiate energy even though it has accelerated motion around the nuclues
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The Bohr ' model of atom is give below
1. an atom is made up of three particles: electrons,protons,neutrons
2. The protons and neutrons are located in small nucleus at the centre of the atom
3. The electron revolve rapidly round the nucleus in fixed circulation paths called energy levels or shells
4. There is a limit to the numbers which each energy level can hold
5. Each energy level is associated with a fixed amount of energy
6. There is no change in energy of electrons as long as they keep revolving in the same energy level,and the atoms remain stable
1. an atom is made up of three particles: electrons,protons,neutrons
2. The protons and neutrons are located in small nucleus at the centre of the atom
3. The electron revolve rapidly round the nucleus in fixed circulation paths called energy levels or shells
4. There is a limit to the numbers which each energy level can hold
5. Each energy level is associated with a fixed amount of energy
6. There is no change in energy of electrons as long as they keep revolving in the same energy level,and the atoms remain stable
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