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Nickel has an atomic number of 28, which means that in a normal state, it would have 28 electrons. Ni+2 means that it oxidized by losing two electrons and would thus have only 26 remaining.

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12y ago
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5mo ago

A nickel ion with a +2 charge has lost 2 electrons. The electronic configuration of nickel is [Ar] 3d8 4s2, so a Ni+2 ion would have the configuration [Ar] 3d8. This means there are 8 electrons in the 3d orbital and a total of 10 electrons in the Ni+2 ion.

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Q: How many total electrons are in a Ni plus 2 ion?
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