Element 88 · Alkaline earth metals
Radium
Scientific reference and industrial context.
Atomic identity
At a glance
- Atomic number
- 88
- Symbol
- Ra
- Isotope mass number
- [226]
- Period
- 7
- Group
- 2
- Table family
- Alkaline earth metals
No standard atomic weight is assigned. The bracketed integer is the isotope mass number listed in the IUPAC 2022 edition, not a standard atomic weight.
Price reference
Reference only
Scientific reference only
This element is included for a complete scientific reference. SFM does not publish a market price or buying offer for it.
Material connections
From element to material.
Named forms and documented alloy relationships. A constituent relationship does not calculate an alloy price or establish buying eligibility.
No verified material or alloy connection has been added to this reference yet.