Chemistry Puns (answers)

Glad to announce we have two winners: Dr. Aaron Beck and Mr. Fabian Batista. You can claim your prize next Monday.
We also had one loser: Santiago Salinas

Here are the answers:
1. Policeman: Copper
2. Have went (very poor grammar): Argon
3. A motto for a well digging company: Boron
4. Holmium X 0.5 = Halfnium
5. To press a shirt: Iron
6. A kitchen work area with a drain: Zinc
7. A ship's kitchen: Gallium
8. The leg joint above the calf: Neon
9. An amusing prisoner: Silicon
10. Ruler of Davy Jones' locker: Neptunium (also accepted Arrrrrrgon)
11. Large building used to store automobiles: Carbon
12. The Lone Ranger's horse: Silver
13. Opposite of hot: Beryllium
14. The name applied to a blond person from Sweden, Norway or Finland: Scandium
15. What do you do before you brand a steer?: Europium
16. Mickey mouse's dog: Plutonium
17. A 2000 pound casket: Krypton
18. A description of beautiful mountains: Arsenic
19. What you do to steak when you barbecue it: Cerium
20. The name of a red flower: Germanium