Note about MCU Vibranium

This may be subject to revision by the various TV series and/or movies. If it does get revised anywhere in the next five years, it'll be in the Black Panther movie set for 2018.

But if I've read the SHIELD Academy-issue periodic table from the Agents of SHIELD first-season episode "Seeds" correctly, Vibranium should be element 119. Period 8, Group 1.

Here's a reproduction of someone else's scan of that graphic. (Sorry that there isn't a better version available.)