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This chemical element has the symbol Tl.

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Your new ahaThallium

Thallium has 81 protons in every atomic nucleus. Changing that number would make a different element. Source: Thallium ↗

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More from Chemical Symbols and Elements

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  1. 82This chemical element has the symbol Pb.RECALL
    Lead

    Atomic number 82

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  2. 83This chemical element has the symbol Bi.RECALL
    Bismuth

    Atomic number 83

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  3. 84This chemical element has the symbol Po.RECALL
    Polonium

    Atomic number 84

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