He needs to add the one from Avatar. The not so creatively named unobtainium (also spelled unobtanium). It’s a generic term that wiki and others define as any ‘rare’ element in sci-fi. I think with the budget Cameron had on that movie he could have made an actual name for the element.
Reminds me of this brilliant video in the “Look Around You” series. If you look at the periodic tables shown throughout the series, you’ll see elements like “Hello” and “Red” and “Toronto” sprinkled in among the real ones.
Hi, everyone…
Thanks for all of your interest in “The Periodic Table of IMAGINARY Elements.”
FYI, Unobtainium IS on there – It’s abbreviation is “Pa”, which stands for Poul Anderson, and is a little dig at Mr. Cameron. (see this: http://io9.com/5390226/did-james-cameron-rip-off-poul-andersons-novell a).
I don’t see Balonium on there!
And in case you’re interested, it’s atomic weight is “Snack-tacular”.

