Which of the following is not a valid electronic structure?

2, 8, 4

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2, 6

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2, 9, 1

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2, 8, 8, 2

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Solution

The correct option is B 2, 9, 1
The second shell can accommodate a maximum of eight electrons. Hence, the electronic structure 2, 9, 1 is not a valid one.

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Which of the following is not a valid electronic structure?

The correct option is B 2, 9, 1The second shell can accommodate a maximum of eight electrons. Hence, the electronic structure 2, 9, 1 is not a valid one.

The correct option is B 2, 9, 1
The second shell can accommodate a maximum of eight electrons. Hence, the electronic structure 2, 9, 1 is not a valid one.