time required for the amount of something to fall to half its initial value English
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Language Label Description Also known as
British English
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    Data type

    Quantity

    Statements

    Q47270 (Deleted Item)
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    Q21077852 (Deleted Item)
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    Q51077473 (Deleted Item)
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    Q848497 (Deleted Item)
    half-life English
    704,000,000±1,000,000 http://www.wikidata.org/entity/Q1092296
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    half-life English
    10.183±0.01699999999999946 http://www.wikidata.org/entity/Q7727
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    mean lifetime English
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    Q19474404 (Deleted Item)
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    Q21514353 (Deleted Item)
    Q1092296 (Deleted Item)
    Q723733 (Deleted Item)
    Q842015 (Deleted Item)
    Q838801 (Deleted Item)
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    Q53869507 (Deleted Item)
    Q21502408 (Deleted Item)
    Q54828448 (Deleted Item)
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    Q52004125 (Deleted Item)
    Q29934200 (Deleted Item)
    Q21502408 (Deleted Item)
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    unit of time English
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