How many energy levels do the electrons occupy for a neutral Oxygen atom?

Question

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6
2
8
-2
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Answer 1

A neutral oxygen atom has 8 electrons. The electrons occupy the energy levels as follows:

1. The first energy level can hold up to 2 electrons.
2. The second energy level can hold up to 8 electrons, but since oxygen only has 6 electrons left after filling the first level, it will fully fill its first level and place the remaining 6 electrons in the second level.

So, the electrons for a neutral oxygen atom occupy 2 energy levels.

Therefore, the answer is 2.