Element:K

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カリウム: カリウムとは中世ラテン語由来で、英語ではポタシウム

Atomic Number

19

Atomic Name

Potassium(カリウム)

Stable Isotopes

isotope mass isotopic abundance (%)
39K 93.2581 93.2581(44)
40K 0.0117 0.0117(1) = (Natural radioactivity isotope)
41K 6.7302 6.7302(44)

Radioisotopes

isotope half life disintegration form
40K 1.277 x 109 years beta-, EC, beta+
42K 12.360 hours beta-
43K 22.3 hours beta-

代謝情報

成人一人当たり200g程度含まれる、細胞内液の主な陽イオンです。ナトリウム(Na)に似た働きを持ちます。

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