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Niobium · chemical symbol

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Niobium has 41 protons in every atomic nucleus. Changing that number would make a different element. Source: Niobium ↗

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  1. 42Molybdenum · chemical symbolRECALL
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    Atomic number 42

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    Tc

    Atomic number 43

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  3. 44Ruthenium · chemical symbolRECALL
    Ru

    Atomic number 44

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