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ScienceOne small ahaElement

This chemical element has atomic number 8.

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Your new ahaOxygen

Oxygen gas makes up about one fifth of dry air near Earth's surface. Source: Oxygen ↗

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More from Atomic Numbers and Elements

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  1. 09This chemical element has atomic number 9.RECALL
    Fluorine

    Symbol F

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  2. 10This chemical element has atomic number 10.RECALL
    Neon

    Symbol Ne

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  3. 11This chemical element has atomic number 11.RECALL
    Sodium

    Symbol Na

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