88 Ra 226

Radium

alkaline earth · Group 2 · Period 7

4 section(s) thin

Atomic properties

Atomic number
88
Z
Atomic weight
226[1]
g/mol
Density
5.5 g/cm³
at STP
Melting point
696 °C
at 1 atm
Boiling point
1737 °C
at 1 atm
Crystal structure
BCC
Electron config.
[Rn] 7s²
Oxidation states
+2
most common

Market data

No tradeable futures market for Ra on Yahoo / Stooq. Live market data is not available; pricing in this page is based on contract reference figures from the source documents.

Commercial forms & specifications

Product FormChemical FormulaMolecular WeightTypical ActivityPrice Range (USD/mg)Main Applications
Radium-226 ChlorideRaCl₂296.94 g/mol1 Ci/g$25,000-50,000Medical research, calibration sources
Radium-223 Dichloride²²³RaCl₂293.94 g/mol50-60 Ci/mg$100,000-250,000Cancer therapy (Xofigo®)
Radium BromideRaBr₂385.84 g/mol1 Ci/g$30,000-60,000Research, historical medical use
Radium SulfateRaSO₄322.09 g/mol0.8-1 Ci/g$20,000-40,000Sealed sources, research
Radium CarbonateRaCO₃286.03 g/mol0.9-1 Ci/g$22,000-45,000Research applications
Radium NitrateRa(NO₃)₂350.03 g/mol0.7-0.9 Ci/g$25,000-50,000Chemical research

Moles per kilogram

Product FormFormulaMW (g/mol)Moles/kgActivity (Ci/kg)
Radium-226 Metal²²⁶Ra226.034.421,000
Radium-223 Metal²²³Ra223.024.4851,000
Radium-226 ChlorideRaCl₂296.943.37760
Radium-226 SulfateRaSO₄322.093.11700
Radium-226 BromideRaBr₂385.842.59585

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).