Difference between revisions of "Promethium"
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Pm; illinium | Pm; illinium | ||
| + | == Risks == | ||
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| + | Strong radioactive poison. | ||
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| + | ==Physical and Chemical Properties== | ||
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! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 1160 | + | | 1160 C |
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! scope="row"| Density | ! scope="row"| Density | ||
| − | | 7.2 | + | | 7.2 g/ml |
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! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
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[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 15:15, 4 August 2022
Description
A radioactive, rare-earth element with an atomic number of 61. Prior to 1948, this element was called illinium. Promethium is a silvery-white metal that is recovered from spent uranium fission products. It is used in luminescent paint, x-ray sources and nuclear auxiliary power generators.
Synonyms and Related Terms
Pm; illinium
Risks
Strong radioactive poison.
Physical and Chemical Properties
| Composition | Pm (atomic no. 61) |
|---|---|
| Melting Point | 1160 C |
| Density | 7.2 g/ml |
| Molecular Weight | atomic wt = 147 |