Roentgenium

(redirected from Eka-gold)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

Roentgenium

(rent-gen′ē-ŭm) [Wilhelm Konrad Roentgen + -ium] Rg
A synthetic radioactive metal with a short-half life (formerly, Unununium; symbol Uuu); atomic mass 281; atomic number 111.
CAS # 54386-24-2