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This chemical element has atomic number 60.

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Your new ahaNeodymium

Neodymium has 60 protons in every atomic nucleus. Changing that number would make a different element. Source: Neodymium

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  1. 61This chemical element has atomic number 61.RECALL
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    Symbol Sm

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  3. 63This chemical element has atomic number 63.RECALL
    Europium

    Symbol Eu

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