87 Fr 223
Francium
alkali metal · Group 1 · Period 7
4 section(s) thin
Atomic properties
Atomic number
87
Z
Density
1.87 g/cm³
at STP
Melting point
27 °C
at 1 atm
Boiling point
677 °C
at 1 atm
Crystal structure
BCC
Electron config.
[Rn] 7s¹
Oxidation states
+1
most common
Market data
No tradeable futures market for Fr on Yahoo / Stooq. Live market data is
not available; pricing in this page is based on contract reference figures from
the source documents.
Moles per kilogram
| Theoretical Form | Formula | MW (g/mol) | Moles/kg |
|---|---|---|---|
| Francium Metal | Fr | 223 | 4.48 |
| Francium Hydroxide | FrOH | 240 | 4.17 |
| Francium Chloride | FrCl | 258.45 | 3.87 |
| Francium Oxide | Fr₂O | 462 | 2.16 |
| Francium Sulfate | Fr₂SO₄ | 542 | 1.85 |
References
No citations on this page yet. References will appear here once enrichment runs.
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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).
- Missing section: Raw Material Sources
- Missing section: Energy Consumption
- Missing section: Commercial Forms
- Missing section: Suppliers by Country