1) Alkaline earth metal
Found on
https://www.crosswordclues.com/clue/unbinilium
Unbinilium m, also called eka-radium or element 120, is the temporary, systematic element name of a hypothetical chemical element in the periodic table that has the temporary symbol Ubn and has the atomic number 120. Since unbinilium should be placed below the alkaline earth metals it possibly has properties similar to those of radium or barium. A...
Found on
http://en.wikipedia.org/wiki/Unbinilium
No exact match found.
