Half-life 3. If you have 20 grams of an isotope of Francium-223, how much will remain after 50 years if it has a half-life of 10 years? What is the equation if Francium-223 does two alpha decays and then beta decay?

Halflife 3 If you have 20 grams of an isotope of Francium223 how much will remain after 50 years if it has a halflife of 10 years What is the equation if Franci class=