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This chemical element has atomic number 17.

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Your new ahaChlorine

Chlorine has 17 protons in every atomic nucleus. Changing that number would make a different element. Source: Chlorine ↗

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More from Atomic Numbers and Elements

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  1. 18This chemical element has atomic number 18.RECALL
    Argon

    Symbol Ar

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  2. 19This chemical element has atomic number 19.RECALL
    Potassium

    Symbol K

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  3. 20This chemical element has atomic number 20.RECALL
    Calcium

    Symbol Ca

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