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The MAXIMUM number of electrons that can occupy the second shell (L shell) is:
A8
B18
C6
D2
Answer & Solution
Correct answer: A. 8
Shell capacities follow 2n² where n = shell number. K shell (n=1): 2 electrons. L shell (n=2): 2(2²) = 8 electrons. M shell (n=3): 2(3²) = 18 electrons. Beyond shell capacities, complexity increases (Aufbau principle, subshells).
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