**MEDAL**

An amateur scientist tells you he has a stable atom of 84 Po 212, why is that unlikely?
A. No atoms are stable.
B. Amateur scientists don't know anything.
C. There are no stable nuclei with more than 83 protons.
D. Male scientists can't be trusted.

Definitely not B or D!

Question

**MEDAL**

An amateur scientist tells you he has a stable atom of 84 Po 212, why is that unlikely?
A. No atoms are stable.
B. Amateur scientists don't know anything.
C. There are no stable nuclei with more than 83 protons.
D. Male scientists can't be trusted.

Definitely not B or D!

anonymous · Answer

C. All elements with an atomic number above 82 (lead) are unstable.