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This chemical element has atomic number 9.

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Your new ahaFluorine

Fluorine has 9 protons in every atomic nucleus. Changing that number would make a different element. Source: Fluorine ↗

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More from Atomic Numbers and Elements

A few more worth knowing.

  1. 10This chemical element has atomic number 10.RECALL
    Neon

    Symbol Ne

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  2. 11This chemical element has atomic number 11.RECALL
    Sodium

    Symbol Na

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  3. 12This chemical element has atomic number 12.RECALL
    Magnesium

    Symbol Mg

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