In late 2006, a former Russian spy was poisoned when a small amount of polonium-210 was put in his food. He died a few weeks later. a. What is the atomic symbol of polonium? b. How many protons and...

In late 2006, a former Russian spy was poisoned when a small amount of polonium-210 was put in his food. He died a few weeks later. a. What is the atomic symbol of polonium? b. How many protons and neutrons does an atom of polonium-210 have? c. Describe the structure of an alpha particle. d. Polonium-210 emits alpha particles. Write a balanced nuclear equation for this process. e. Polonium-210 has a half-life of 138 days. Of a 2 mg sample, how much would remain after 5 half-lives? f. If alpha particles can be blocked by a sheet of paper (Figure 2.27) why is polonium-210 so poisonous?