Simple Browser : Welcome guest : log in		 [  Home |  Graph |  ]  KB:  Language:   

Formal Language: 




Sigma KEE - Mendelevium
KB Term: 

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
mendelevium
Radioactive metallic transuranic element. Belongs to the actinoid series. Only known isotope, Md-256 has a half-life of 1.3 hours. First identified by Glenn T. Seaborg, Albert Ghiorso and associates in 1955. Alternative name {unnilunium} has been proposed. Named after the 'inventor' of the periodic table, Dmitri Mendeleev.
Relationships      
Parents elemental substance The Class of PureSubstances that cannot be separated into two or more Substances by ordinary chemical (or physical) means. This excludes nuclear reactions. ElementalSubstances are composed of only one kind of atom. Examples: Iron (Fe), copper (Cu), and oxygen (O_2). ElementalSubstances are the simplest PureSubstances.


Show simplified definition with tree view
Show full definition (without tree view)
Show full definition (with tree view)


Sigma web home      Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0 is open source software produced by Articulate Software and its partners