Chemical entity
[Wikipedia] Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a silvery-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity (electrowinning).
Zinc
Concept
SKOS Concept
definition
A statement or formal explanation of the meaning of a concept.
is in scheme
Relates a resource (for example a concept) to a concept scheme in which it is included.
preferred label
A resource has no more than one value of skos:prefLabel per language tag, and no more than one value of skos:prefLabel without language tag.
The range of skos:prefLabel is the class of RDF plain literals.
skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties.
The preferred lexical label for a resource, in a given language.
alternative label
The range of skos:altLabel is the class of RDF plain literals.
An alternative lexical label for a resource.
has broader
Broader concepts are typically rendered as parents in a concept hierarchy (tree).
Relates a concept to a concept that is more general in meaning.
has exact match
skos:exactMatch is disjoint with each of the properties skos:broadMatch and skos:relatedMatch.
skos:exactMatch is used to link two concepts, indicating a high degree of confidence that the concepts can be used interchangeably across a wide range of information retrieval applications. skos:exactMatch is a transitive property, and is a sub-property of skos:closeMatch.