Question

From your periodic table, give the ½ lives and the type of radioactive decay for all the isotopes of U, Np and Th

Answer 1

I don't know I a. doing it for points

Answer 2

Answer:The naturally occurring radioactive isotopes of the heaviest elements fall into chains of successive disintegrations, or decays, and all the species in one chain constitute a radioactive family, or radioactive decay series. Three of these series include most of the naturally radioactive elements of the periodic table. They are the uranium series, the actinide series, and the thorium series. The neptunium series is a fourth series, which is no longer significant on the earth because of the short half-lives of the species involved

Explanation:I don't know weather it's correct or wrong

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