promethium
Instance URI: http://resource.geosciml.org/classifier/cgi/commodity-code/promethium
Within scheme: South Australian Commodity Codes
Promethium, originally prometheum, is a chemical element with the symbol Pm and atomic number 61. All of its isotopes are radioactive; it is one of only two such elements that are followed in the periodic table by elements with stable forms, a distinction shared with technetium.
| Type |
Concept
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|---|---|
| Is Defined By |
ns2:commodity-code
|
| Label |
promethium
en
|
| Status |
ns3:original
|
| Has Exact Match |
ns5:promethium
|
| Notation |
Pm
ns7:AbbreviatedLabel
02.01.03.02.05 ns7:LocalHierarchyKey |
| Preferred Label |
promethium
en
|
| Citation |
http://en.wikipedia.org/wiki/Promethium
xsd:anyURI
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| Broader |
LREE
|