Question

1. the second energy level can hold how many electrons?

eight

one

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Explanation:

The formula to calculate the number of electrons an energy level can hold is \(2n^{2}\), where \(n\) is the energy level number. For the second energy level (\(n = 2\)), we have \(2\times2^{2}=2\times4 = 8\). So the second energy level can hold eight electrons.

Answer:

Eight