NDA2021General AbilityGeneral ScienceActual
What is the maximum number of electrons in the M-Shell?
Options
- A6
- B8
- C18
- D32
Correct answer
C. 18
Step-by-step solution
Bohr and Bury gave the following rules for the distribution of electrons around the nucleus. - Electrons are revolving around the nucleus in different orbits or shells. These energy shells are represented by numbers 1,2,3,4 or K , L , M , N . - The maximum number of electrons in any shell cannot exceed 2 n 2 , where n is the number of that energy level. - The maximum number of electrons that can be accommodated in the outermost orbit is 8 . The next to the outermost shell (penultimate shell) can have at the most 18