JEE Chemistry
JEEChemistryStructure of AtomClass 11

What are the most common mistakes students make in Structure of Atom?

chromium is 3d⁵ 4s¹ and copper 3d¹⁰ 4s¹ — half/fully-filled d subshells are extra stable.

Top mistakes to avoid in Structure of Atom: • chromium is 3d⁵ 4s¹ and copper 3d¹⁰ 4s¹ — half/fully-filled d subshells are extra stable. • confusing the principal quantum number n (shell) with l (subshell). • drawing fixed circular orbits (Bohr) instead of probability clouds. • pairing electrons in a subshell before every orbital has one. • expecting a definite electron path.

Common mistake

chromium is 3d⁵ 4s¹ and copper 3d¹⁰ 4s¹ — half/fully-filled d subshells are extra stable.

Tap to watch or see it right here — the app stays open (it only opens a quick search if nothing embeddable is found).

More on Structure of Atom