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Roentgenium (German: [ʁœntˈɡeːni̯ʊm] ) is a
synthetic chemical element; it has
symbol Rg and
atomic number 111. It is
extremely radioactive and can only...
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Roentgenium (111Rg) is a
synthetic element, and thus a
standard atomic weight cannot be given. Like all
synthetic elements, it has no
stable isotopes...
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silver (Ag), gold (Au), and
roentgenium (Rg),
although no
chemical experiments have yet been
carried out to
confirm that
roentgenium behaves like the heavier...
- as
recommended by IUPAC. ^f
Coinage metals:
authors differ on
whether roentgenium (Rg) is
considered a
coinage metal. It is in
group 11, like the other...
- for the co-discoveries of
elements 110, 111, and 112 (darmstadtium,
roentgenium and copernicium, respectively).
Ninov also
claimed the
creation of elements...
- of
highways numbered 111 1/11 (disambiguation) 11/1 (disambiguation)
Roentgenium,
synthetic chemical element with
atomic number 111 This disambiguation...
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International Union of Pure and
Applied Chemistry (IUPAC)
named element 111,
roentgenium, a
radioactive element with
multiple unstable isotopes,
after him. The...
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Rutherfordium Dubnium Seaborgium Bohrium H****ium
Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson...
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three coinage metals copper, silver, and gold
known from antiquity, and
roentgenium, a
recently synthesized superheavy element. 11 is the
number of spacetime...
- meitnerium. 110: Uun, ununnilium; Ds, darmstadtium. 111: Uuu, unununium; Rg,
roentgenium. 112: Uub, ununbium; Cn, copernicium. 113: Uut, ununtrium; Nh, nihonium...
