Roentgenium is an artificial element, obtained via nuclear reactions in particle accelerators.
Roentgenium hasn't practical uses.
Roentgenium has 111 electrons.
Roentgenium has no uses.
Roentgenium has no uses.
Roentgenium has no uses.
Any food has roentgenium.
"Roentgenium: Illuminating the future of science."
Roentgenium is a solid metal.
Roentgenium is a solid metal.
Any roentgenium exist in foods.
Roentgenium is a transition metal.
The chemistry of roentgenium is unknown.
Roentgenium is an artificial chemical element, atomic number 111.