Norium - Law Dictionary Search Results
Home Dictionary Name: noriumnorium
A supposed metal alleged to have been discovered in 1845 by the Swedish chemist Swanberg in zircon After many unsuccessful attempts to verify this new element the element named Hafnium atomic number 72 was discoverd in 1923 by D Coster and G von Hevesey in the zirconium containing mineral zircon Hafnium present at 1 to 5 in many zirconium bearing minerals but difficult to separate from zirconium is probably the element that gave rise to the properties attributed to the hypothetical norium...
hafnium
A metallic element of atomic number 72 present together with zirconium to the extent of 1 to 5 in zirconium minerals It is a poisonous ductile metal with a brilliant silver luster has an atomic weight of 17849 and has a high melting point 2227deg C It is used in nuclear reactors and incandescent lamps as a scavenger of oxygen and nitrogen See also norium...
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