| Element (Atom) Name | Roentgenium |
| Symbol | Rg |
| Physical state at room temperature | Solid (predicted) (Ref: Jlab-ele111) |
| Element Classification | Metal |
| Group Name | None |
| Period Number (Periodic table) | 7 |
| Group number (Periodic table) | 11 |
| Atomic number | 111 |
| Atomic weight | 281 (Ref: Jlab-ele111) 282 (predicted) (Ref: Lanl-111) |
| Atomic Radius | empirical: 138 pm (predicted) (predicted) (Ref: Lanl-111) |
| Density | |
| Melting point | |
| Boiling point | |
| Electron shell configuration (Predicted) | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s1 |
| Oxidation States | 5, 3, 1, −1 (predicted) (Ref: Lanl-111) |
| Ionization Energy | |
| Number of Stable Isotopes | 0 |
| InChI | InChI=1S/Rg (Ref: Pubchem-111) |
| InChI Key | LJROPTGWFUZRDB-UHFFFAOYSA-N (Ref: Pubchem-111) |
| Remarks | Radioactive, Artificially Produced (Ref: Jlab-ele111) |
REFERENCES
- Jlab-ele111: https://education.jlab.org/itselemental/ele111.html
- Lanl-111: https://periodic.lanl.gov/111.shtml
- ciaaw-atomic-weights: https://www.ciaaw.org/atomic-weights.htm
- Nist-111: https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=111
- Pubchem-111: https://pubchem.ncbi.nlm.nih.gov/element/111
- science.co.il: https://www.science.co.il/elements/
