13 Elements of the Periodic Table

1. Iridium
2. Uranium
3. Zinc
4. Copper
5. Hydrogen
6. Gold
7. Einsteinium
8. Iron
9. Oxygen
10. Neon
11. Potassium
12. Carbon
13. Americium

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How about:

13 Types of Cheeses!!

1. Provolone