what r the rules of distribution of electrons in different shells of an atom.Pls give me all rules of higher classes also.
Bohr and Bury together suggested certain rules to show how electrons are distributed in different orbits. These rules have to be followed for writing the number of electrons in different energy levels.
(i) The maximum number of electrons which can be accommodated in a given orbit is given by the formula 2n2, where not is the quantum number of the orbit. Thus and so on.
(ii) The outermost orbit can have at the most 8 electrons, and the next inner to the outermost (penultimate) can have at the most 18 electrons, (if permissible in accordance with rule i).
(iii) It is not always necessary to fill up an orbit completely before starting the next higher orbit.
HOPE THIS HELPS!!!!!!!!!!!!
THUMBS UP PLEASE
- The maximum number of electrons present in a shell is given by the formula 2n2, where ‘n’ is the orbit number or energy level index, 1,2,3,…. Hence the maximum number of electrons in different shells are as follows: first orbit or K-shell will be = 2 × 12 = 2, second orbit or L-shell will be = 2 × 22 = 8, third orbit or M-shell will be = 2 × 32 = 18, fourth orbit or N-shell will be = 2 × 42= 32, and so on.
- The maximum number of electrons that can be accommodated in the outermost orbit is 8.
- Electrons are not accommodated in a given shell, unless the inner shells are filled. That is, the shells are filled in a step-wise manner.