The number of maximum electrons in N shell is

The maximum number of electrons that can occupy a specific atomic shell is determined by the formula 2n², where 'n' represents the principal quantum number or shell number. In atomic structure, shells are designated by letters starting from the nucleus: K (n=1), L (n=2), M (n=3), and N (n=4). For the N shell, the principal quantum number is 4. Applying the formula, the maximum capacity is calculated as 2 × (4)² = 2 × 16 = 32 electrons. This total is also supported by the sum of electrons in the subshells available in the fourth energy level: the 4s (2), 4p (6), 4d (10), and 4f (14) orbitals, which together equal 32. While the outermost shell of an atom typically follows the octet rule for stability, the theoretical maximum capacity of the N shell remains 32.