Q. The third shell of an atom can have a maximum of ______ electrons.
✅ Correct Answer: (C)
18
Explanation: The maximum number of electrons that can occupy a shell is given by the formula 2n², where n is the principal quantum number (the shell number). For the third shell (n = 3):
2×(3)^2=2×9=18
So, the third shell can hold a maximum of 18 electrons.
Explanation by: Praveen Singh
The maximum number of electrons that can occupy a shell is given by the formula 2n², where n is the principal quantum number (the shell number). For the third shell (n = 3):
2×(3)^2=2×9=18
So, the third shell can hold a maximum of 18 electrons.
2×(3)^2=2×9=18
So, the third shell can hold a maximum of 18 electrons.