Advertisements
Advertisements
प्रश्न
Give the postulates of Bohr's atomic model
Advertisements
उत्तर
Atom has a central nucleus surrounded by electrons.
The electrons revolve around the nucleus in definite circular paths called orbits.
Each orbit has fixed energy. Therefore, these orbits are also known as energy levels or energy shells.
These orbits or energy levels are represented either by a number 1, 2, 3,... known as the principal quantum number (n) of the orbit or by K, L, M,....
There is no change of energy of electrons as long as they keep revolving in the same energy level and the atom remains stable. Electrons can jump from the higher orbit to the lower orbit when they lose energy and jump to the next when they gain energy.
APPEARS IN
संबंधित प्रश्न
Draw a sketch of Bohr’s model of an atom with three shells.
Describe Bohr's model of the atom. How did Neils Bohr explain the stability of atom?
State in brief the drawbacks of Rutherford's atomic model correlating them with the postulates of Bohr’s atomic model.
State true or false. If false, correct the statement.
Smaller the size of the orbit, lower is the energy of the orbit.
Explain the postulates of Bohr’s atomic model.
An atom with 3 protons and 4 neutrons will have a valency of
Niels Bohr was Born on ______.
Bohr's model of atoms ______.
The scientist who proposed the atomic model based on the quantisation of energy for the first time is ______.
The angular momentum of electron in hydrogen atom in first orbit is ‘L’. The change in angular momentum if electron is in second orbit of hydrogen atom is ______.
