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The ions of elements nitrogen (N3-), oxygen (O2-), and fluorine (F-) will have the same electron configuration as a sodium ion (Na+), which is the same as the electron configuration of the noble gas neon.

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10y ago
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8y ago

Li+ ion has the same electron configuration. They both have 2 electrons.

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9y ago

Lithium can lose 1 electron. It forms Li+ and have same configuration as He.

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7y ago

Identical electron configuration is not possible for neutral atoms.

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14y ago

H-

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9y ago

Li +

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11y ago

Na+

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Q: Which ion has the same electron configuration as an atom of He?
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