lawrencium-256
isotope
Quick Summary
Lawrencium-256 is a synthetic isotope of the element lawrencium (Lr), which has an atomic number of 103. Lawrencium is a member of the actinoid series and is not found in nature. Lawrencium-256 was first discovered by a team of Soviet scientists in 1965 and has a half-life of 26 seconds. This means that after 26 seconds, half of the nuclei in a sample of lawrencium-256 will have decayed. This isotope was later used in studies to determine that lawrencium behaves similarly to other tripositive elements in the actinoid series.12
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