JEE MAIN2024Atomic Structure1.The maximum number of electrons that can be accommodated in the 3rd shell (n = 3) is:A8B18C32D10View AnswerCorrect Answer:B — 18Explanation:Maximum electrons in a shell = 2n22n^22n2. For n = 3: 2×32=182 \times 3^2 = 182×32=18.