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promethium

http://resource.geosciml.org/classifier/cgi/commodity-code/promethium

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
notation
02.01.03.02.05 more like this
Pm more like this
source http://en.wikipedia.org/wiki/Promethium more like this
type
Resource original
Concept original
broader
http://resource.geosciml.org/classifier/cgi/commodity-code/lree original
narrower promethium original
in scheme commodity-code original
is primary topic of promethium