Polonium suspected in death of Arafat: reports

Polonium 210 is a naturally occurring radioactive element found in low concentrations in the environment. It is highly radioactive and chemically toxic. Polonium 210 decays to lead 206, emitting alpha particles that travel only a few centimeters in air and can be stopped by paper. These particles are hard to detect but pose a deadly hazard if ingested, causing symptoms like diarrhea, vomiting, reduced white blood cells, and hair loss. External exposure is not a risk as the radiation cannot penetrate the skin.

What is Polonium 210 and where is it found?

Describe the decay process of Polonium 210.

What are alpha particles and how do they interact with materials?

What symptoms are associated with Polonium 210 poisoning?

Why is external exposure to Polonium 210 not considered a risk?