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This chemical element has the symbol Se.

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Your new ahaSelenium

Selenium has 34 protons in every atomic nucleus. Changing that number would make a different element. Source: Selenium ↗

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More from Chemical Symbols and Elements

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  1. 35This chemical element has the symbol Br.RECALL
    Bromine

    Atomic number 35

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  2. 36This chemical element has the symbol Kr.RECALL
    Krypton

    Atomic number 36

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  3. 37This chemical element has the symbol Rb.RECALL
    Rubidium

    Atomic number 37

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