Question

What is the maximum number of electrons that can be present in a given shell according to the Bohr-Bury scheme?

Answer 1

Bohr-Bury Scheme:

Some of the rules stated in the Bohr-Bury scheme are:

1. The electrons in an atom are organized in distinct shells surrounding the nucleus, with the electrons occupying the shell nearest to the nucleus first since it has the lowest energy.
2. The formula $2{\mathrm{n}}^2$ gives the maximum number of electrons that may be accommodated in a particular shell, where n is the principal quantum number.
3. The K-shell is the first and deepest shell, and it can hold up to two electrons $[2{\left(1\right)}^2=2]$.
4. The L-shell is the second shell, and it may hold up to eight electrons $[2{\left(2\right)}^2=8]$.
5. The third shell, known as the M-shell, may hold a total of eighteen electrons $[2{\left(3\right)}^2=18]$.

Hence, the maximum number of electrons that can be present in a given shell according to the Bohr-Bury scheme is given by the formula $2{\mathrm{n}}^2$.