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Arsenic's atomic number is 33. That means neutral arsenic has 33 protons and 33 electrons. Thus, its electron configuration is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3.

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13y ago
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11y ago

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3

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11y ago

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3.

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Q: What is the correct electron configuration for arsenic?
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