Gold sees sodium and potassium on the street

[underpants]

Gold says, "Ay! you! want to go see a movie?"

Sodium says, "Na, not me"
Potassium says, "K"

[pinboy3niner]

1. With all my groaners, I am loathe to comment

[NV Whino]

2. Um, gold is AU

[underpants]

6. Ay! You!

AU

[NV Whino]

8. Oh duh.

I'm a little slow sometimes.

[JustABozoOnThisBus]

3. helium-helium. nt

[Brother Buzz]

4. Plutonium says that's 2/3 of a pun....

Pu!

[Amishman]

5. lead lead lead lead

PbPbPbPb

[Lionel Mandrake]

7. You've probably heard this before, but ...

Johnny was a chemist,
Johnny is no more;
What Johnny thought was H2O
was H2SO4.

[DFW]

9. RATS!!!!!!!

That's what I was gonna post!!!!!

Of course, now you'll have half of DU wondering what in the world "H2SO4" means.......

[Lionel Mandrake]

10. Just tell 'em it's H2O + SO3.

That should clear up any confusion.