Single element: energy needed to make one (5)
I believe the answer is:
unite
(Other definitions for unite that I've seen before include "Join forces" , "fuse" , "Become an integrated whole" , "Wed?" , "Come together as allies or comrades" .)
I believe the answer is:
unite
(Other definitions for unite that I've seen before include "Join forces" , "fuse" , "Become an integrated whole" , "Wed?" , "Come together as allies or comrades" .)