I was looking at the Periodic table at Memory Beta. Alright, it is from the Star Fleet Medical Reference Manual. A such it is quite old and probably out-of-date. Now I have some questions: 1. What other elements appearer in Star Trek, be it on-screen or off, that are missing? 2. Are those elements consistent with our present day knowledge? Like Dilithium (119) being a crystal and so on... 3. And perhaps, what should be changed so the Periodic table becomes accurate? Relatively speaking. Please leave the Periodic table from TNG Rascals with its jokes out of here.