POTASSIUM
discussion: g65 9/8 17-20
isotopes: g62 10/22 10
need in human body: g74 4/22 24
potassium-argon dating: g81 11/22 13-14; ev 101-102; g67 4/22 15-16; g62 10/22 9-11
subject to variation: g78 9/8 30
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POTASSIUM
discussion: g65 9/8 17-20
isotopes: g62 10/22 10
need in human body: g74 4/22 24
potassium-argon dating: g81 11/22 13-14; ev 101-102; g67 4/22 15-16; g62 10/22 9-11
subject to variation: g78 9/8 30