| Formula / Notation | Po |
|---|---|
| CAS Number | 7440-08-6 |
| Molecular Weight | 209.0 |
| Melting Point | 254.0 |
| Boiling Point | 962.0 |
| Density | 9.32 |
| Solubility | Slightly soluble (dissolves in acids) |
| Appearance | Silvery-grey metalloid; radioactive |
| Also Known As | Po, polonium element |
| Category | Elements |
What is Polonium?
Polonium is a highly radioactive metalloid, atomic number 84. Discovered by Marie and Pierre Curie in 1898 and named after Poland. Polonium-210 is an intense alpha emitter used as neutron initiator in nuclear weapons and in static eliminators. Used in the assassination of Alexander Litvinenko (2006).
Formula & Notation
IUPAC Name: Polonium
Other Names / Synonyms: Po, polonium element
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 254.0 |
| Boiling Point | 962.0 |
| Density | 9.32 |
| Molecular Weight | 209.0 |
| Solubility | Slightly soluble (dissolves in acids) |
| Appearance | Silvery-grey metalloid; radioactive |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Polonium is a highly radioactive metalloid, atomic number 84. Discovered by Marie and Pierre Curie in 1898 and named after Poland. Polonium-210 is an intense alpha emitter used as neutron initiator in nuclear weapons and in static eliminators. Used in the assassination of Alexander Litvinenko (2006).
Neutron source initiator in nuclear weapons (Po-210 + Be). Static charge eliminators (Po-210 alpha emitter). Nuclear batteries. Calibration source for radiation detectors. Po-210 found in tobacco smoke (from phosphate fertilisers). Scientific research.
Extremely toxic and radiotoxic - Po-210 is one of the most toxic substances known. LD50 (inhalation) estimated ~10 ng/kg. 1 microgram Po-210 delivers lethal radiation dose. Causes acute radiation syndrome and death. Only accessible to state actors for practical amounts. Litvinenko assassination used…
The formula or notation for Polonium is: Po