Why is actinium unique?
Actinium-225 is unique among alpha emitters because it only has a 10-day half-life. (An isotope's half-life is the amount of time it takes to decay to half of its original amount.) In fewer than two weeks, half of its atoms have turned into different isotopes.Jun 20, 2018
Actinium-225 is unique among alpha emitters because it only has a 10-day half-life. (An isotope's half-life is the amount of time it takes to decay to half of its original amount.) In fewer than two weeks, half of its atoms have turned into different isotopes.Jun 20, 2018
