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KB Term:
Zirconium
Sigma KEE - Zirconium
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zirconium
Grey-white metallic transition element. Five natural isotopes and six radioactive isotopes are known. Used in nuclear reactors for a {neutron} absorber. Discovered in 1789 by Martin Klaproth, isolated in 1824 by Berzelius.
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Parents
elemental substance
The
Class
of
PureSubstance
s that cannot be separated into two or more
Substance
s by ordinary chemical (or physical) means. This excludes nuclear reactions.
ElementalSubstance
s are composed of only one kind of atom. Examples: Iron (Fe), copper (Cu), and oxygen (O_2).
ElementalSubstance
s are the simplest
PureSubstance
s.
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