Roentgenium is a short-lived synthetic transition element expected to show unusual heavy-element effects within the coinage-metal group.
Atomic number
111
Category
Transition metal
Period
7
Group
11
State
Predicted solid
Fun facts about Roentgenium
It is named after X-ray discoverer Wilhelm Röntgen.
Its periodic neighbours are copper, silver, and gold.
Experimental chemistry remains very limited because production rates are tiny.
Common uses of Roentgenium
Fundamental research only
Where Roentgenium sits in the periodic table
Roentgenium is classified as a transition metal in period 7 and group 11 of the periodic table. Under the conditions represented in this reference, its state is predicted solid.
Quick chemistry revision
For quick revision, pair the symbol Rg with atomic number 111 and the listed atomic mass [282]. The summary, facts, and uses above keep those element properties together in one reference.