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This chemical element has the symbol Ni.

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Nickel has 28 protons in every atomic nucleus. Changing that number would make a different element. Source: Nickel ↗

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  1. 29This chemical element has the symbol Cu.RECALL
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    Atomic number 29

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    Atomic number 30

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  3. 31This chemical element has the symbol Ga.RECALL
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    Atomic number 31

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