Biology Forums - Study Force

Cm decays by alpha emission to give Pu. If unshaded spheres represent Cm atoms and shaded spheres represent Pu atoms, how many half-lives have passed in the following example?




▸ 1 half-life

▸ 2 half-lives

▸ 3 half-lives

▸ 4 half-lives

2 half-lives

C decays by beta emission to give N. If unshaded spheres represent C atoms and shaded spheres represent N atoms, how many half-lives have passed in the following example?




▸ 1 half-life

▸ 2 half-lives

▸ 3 half-lives

▸ 4 half-lives

3 half-lives

Po decays by electron capture to give Bi. If unshaded spheres represent Po atoms and shaded spheres represent Bi atoms, how many half-lives have passed in the following example?




▸ 1 half-life

▸ 2 half-lives

▸ 3 half-lives

▸ 4 half-lives

4 half-lives