hafnium

(Hf) Type: Term Pronunciation: haf′nē-ŭm Definitions: 1. A rare chemical element, atomic no. 72, atomic wt. 178.49.
Found on http://www.medilexicon.com/medicaldictionary.php?t=39026

hafnium

[n] - a gray tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals
Found on http://www.webdictionary.co.uk/definition.php?query=hafnium

Hafnium

Hafnium is a silvery coloured, ductile metal which is found in all minerals containing zirconium. The chemistries of the two metals are similar which makes them difficult to separate, and the properties of each are greatly affected by the presence of the other as an impurity. Both zirconium and hafnium are extracted as the pure metal by reducing th...
Found on http://www.diracdelta.co.uk/science/source/h/a/hafnium/source.html

hafnium

<chemical> Hafnium. A metal element of atomic number 72 and atomic weight 178.49, symbol hf. ... Chemical name: Hafnium ... (12 Dec 1998) ...
Found on http://www.encyclo.co.uk/local/20973

hafnium

(Hf) (haf┬┤ne-әm) a chemical element, atomic number 72, atomic weight 178.49.
Found on http://www.encyclo.co.uk/local/21001

hafnium

chemical element (atomic number 72), metal of Group IVb of the periodic table. It is a ductile metal with a brilliant silvery lustre. The Dutch ... [4 related articles]
Found on http://www.britannica.com/eb/a-z/h/3

hafnium

hafnium (hăf'nēum) , metallic chemical element; symbol Hf; at. no. 72; at. wt. 178.49; m.p. about 2,227°C; b.p. 4,602°C; sp. gr. 13.31 at 20°C; valence +4. Hafnium is a lustrous, ductile, silvery metal with a hexagonal, close-packed crystalline structure. Its chemical pro...
Found on http://www.infoplease.com/ce6/sci/A0822331.html

Hafnium

Hafnium is a silvery metal element with the symbol Hf occurring in zircon and used in nuclear reactors in the control rods and also used for light-bulb filaments. It was named in 1923 by the Dutch physicist Dirk Coster and Hungarian chemist Georg von Hevesy after the city of Copenhagen, where the element was discovered (Hafnia is Latin for Copenhag...
Found on http://www.probertencyclopaedia.com/browse/GH.HTM

hafnium

Silvery, metallic element, atomic number 72, relative atomic mass 178.49. It occurs in nature in ores of zirconium, the properties of which it resembles. Hafnium absorbs neutrons better than most metals, so it is used in the control rods of nuclear reactors; it is also used for light-bulb filaments. It was named in 1923 by Dutch physicist D...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0010018.html

Hafnium

Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in zirconium minerals. Its existence was predicted by Dmitri Mendeleev in 1869, though hafnium was not identified until 1923, making it the penultimate stable isotope ele...
Found on http://en.wikipedia.org/wiki/Hafnium
No exact match found