pls give brief information about quantum numbers.
Answers
principal quantum no gives information about size and energy of orbital. Azimuthal quantum no gives information about shape of orbital.magnetic quantum no gives special orientation.spin quantum no gives information about spin of orbital
We know that electrons do not follow definite paths in an atom and it is not possible to pin point an electron in an atom .
Under these circumstances , in order to understand the properties of electrons in an atom , a quantum mechanical model of an atom was developed by Erwin Schrodinger .
According to this model of an atom , instead of orbits of Bohr's model , the electrons are thought exist in a particular region of space around the nucleus at a given instant of time called as orbits .
Each orbital of a stable energy for the electron is described by a particular set of quantum numbers .
Quantum numbers are of four types . They are :
1) Principal quantum number
2) The angular - momentum ( or ) Azimuthal quantum number
3) Magnetic quantum number
4) Spin quantum number
1) Principal quantum number is introduced by Bohr . It describes size and energy of main shell .
2) The angular momentum quantum number was introduced by Sommerfeld . It describes the shape of an orbit.
3) Magnetic quantum number is introduced by Landey . It describes the orientation of orbitals .
4) Spin quantum number was introduced by Uhlenbeck and Goud Smith . It describes orientation of spin .