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Polonium
- CAS No.
- 7440-08-6
- Chemical Name:
- Polonium
- Synonyms
- 84Po;Polonio;Chebi:33313;polonium atom
- CBNumber:
- CB21352575
- Molecular Formula:
- Po
Lewis structure
- Molecular Weight:
- 209
- MDL Number:
- MOL File:
- 7440-08-6.mol
Last updated:2023-10-17 17:11:49
| Melting point | 254° |
|---|---|
| Boiling point | bp 962° |
| Density | (a-form) 9.196; d (b-form) 9.398 |
| form | silvery metal |
| color | silvery metal; cubic |
| FDA UNII | DQY03U61EJ |
| EPA Substance Registry System | Polonium (7440-08-6) |
Polonium Chemical Properties,Uses,Production
Chemical Properties
radioactive solid; α-emitter; resistivity (0°C) 44 μohm· cm; chemical behavior resembles Te, Bi; coexists with α-form over temp range 18°C–54°C; electronegativity 1.76 [MER06] [COT88]
History
This radioactive metal was also known as radium-F. The name of Polonium derives from “Poland”, the native country of Marie Sklodowska Curie. It was discovered by Marie Curie (Paris, France) in 1898, from its radioactivity. It was independently found by the German chemist Willy Marckwald in 1902 and called radiotellurium. The longest halflife associated with this unstable element is 102 year 209Po.
Definition
ChEBI: A radioactive metallic element discovered in 1898 by Marie Sklodowska Curie and named after her home country, Poland (Latin Polonia).
Polonium Preparation Products And Raw materials
Raw materials
Preparation Products
84Po
Chebi:33313
Polonio
polonium atom
7440-08-6