111 Rg 282

Roentgenium

unknown · Group 11 · Period 7

5 section(s) thin

Atomic properties

Atomic number
111
Z
Atomic weight
282[1]
g/mol
Density
N/A
at STP
Melting point
N/A
at 1 atm
Boiling point
N/A
at 1 atm
Crystal structure
unknown
Electron config.
[Rn] 5f¹⁴ 6d⁹ 7s²
Oxidation states
unknown
most common

Market data

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References

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Coverage notes

The following sections are thin or absent in the source document for this element. They will be filled by enrichment passes (NIST atomic, OSHA/NIOSH safety, USGS / IAI environmental).