NCERT Exercise 3.4 - Classification of Elements and Periodicity in Properties

Question: Using quantum numbers, justify why the sixth period has 32 elements.

Answer: The sixth period fills 6s, 4f, 5d and 6p: 2 + 14 + 10 + 6 = 32 electrons/elements.

Full step-by-step NCERT solution with diagrams on Something by Zero.