Q: What do you do with a sick chemist? A: If you can't helium, and you can't curium, then you might as well barium.
 927
0  

Helium walks into a bar. The bartender says "We don't serve noble gasses in here." Helium doesn't react.
 2120
1  

Q: Why accountants don't read novels? A: Because the only numbers in them are page numbers.
 2762
2  

A proton and a neutron are walking down the street. The proton says, "Wait, I dropped an electron help me look for it." The neutron says "Are you sure?" The proton replies "I'm positive."
 2365
3  

Two chemists go into a restaurant. The first one says "I think I'll have an H2O." The second one says "I think I'll have an H2O too" - and he died.
 924
0