This week's bonus, since I mentioned Chemistry, will be Feff's top ten favorite chemical elements:
10. Praseodymium (Pr)
9. Technetium (Tc)
8. Gadolinium (Gd)
7. Einsteinium (Es)
6. Mendelevium (Md)
5. Californium (Cf)
4. Strontium (Sr)
3. Ruthenium (Ru)
2. Berkelium (Bk)
1. Tin (Sn)