An atom have configuration. The maximum number of electrons in the same spin is — Atomic Structure Chemistry Question

💡 Solution & Explanation

For a $d^8$ configuration, by Hund's rule, the 5 orbitals are first filled singly with parallel spins (5 electrons of one spin), then the remaining 3 electrons pair up with opposite spins (3 electrons of opposite spin). The maximum number of electrons with the same spin is 5. Therefore, correct answer is A.