Ununoctium -LRB- ; officially , the two initial Us are to be pronounced -RRB- , also known as eka-radon or element NUMBER@1 , is the temporary ORGANIZATION@1 name for the transactinide element having the atomic number NUMBER@1 and temporary element symbol Uuo .

Ununoctium -LRB- or -RRB- , also known as eka-radon or element NUMBER@1 , is the temporary ORGANIZATION@1 name for the transactinide element having the atomic number NUMBER@1 and temporary element symbol Uuo .
