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It is 2p. Because the electron configuration for oxygen is 1s2 2s2 2p4, therefore 2p being the greatest or highest energy level

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12y ago
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11y ago

helium has only one energy level (with 2 electrons in it).

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11y ago

helium has only 1 energy level with 2 electrons

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14y ago

1

He-1

more precisely, 1s

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11y ago

only 2 electrons

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9y ago

1S

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14y ago

q

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11y ago

2s

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9y ago

one

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Q: What is the highest occupied energy level in He?
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