Commodity Code


unstar this property definition 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. more like this
unstar this property notation more like this
Pm more like this
star this property source more like this
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star this property broader lree
star this property narrower promethium
unstar this property in scheme commodity code
star this property is primary topic of promethium& properties=notation,definition,inScheme