Holmium

created by Webster 1913

(thing) by CentrX (8.4 mon) (print) ? (I like it!) 1 C! Thu Nov 09 2000 at 20:49:45

(So named (Modern Latin Holmia, Stockholm) by P. T. Cleve, Swedish chemist, its second discoverer, after his native city) A trivalent, silvery chemical element, one of the rare-earth metals.

(thing) by SSMark82 (1.8 y) (print) ? (I like it!) Tue Dec 12 2000 at 20:55:59

Holmium
Symbol: Ho
Atomic Number: 67
Atomic Weight: 164.9303
Boiling Point: 2968 K
Melting Point: 1747 K
Density at 300K: 8.80 g/cm³
Covalent radius: 1.58
Atomic radius: 2.47
Atomic volume: 18.7 cm³/mol
First ionization potental: 6.02 V
Specific heat capacity: 0.165 Jg^-1K^-1
Thermal conductivity: 16.2 Wm^-1K^-1
Electrical conductivity: 1.1*10⁶Ω^-1m^-1
Heat of fusion: 17.15 kJ/mol
Heat of vaporization: 251.04 kJ/mol
Electronegativity: 1.23 (Pauling's)

(definition) by Webster 1913 (print) Wed Dec 22 1999 at 0:10:43

Hol"mi*um (?), n. [NL., of uncertain origin.] Chem.

A rare element said to be contained in gadolinite.

-- Hol"mic (#), a.

Erbium	Hafnium	Lanthanide Series	MC Setch and the Ganmeister
ho	Stockholm	Discovery of the Lanthanides and Actinides	bean
Bill of Rights	Periodic Table of the Elements	Hydrogen	Aluminum
Indium	Orbital	dysprosium	Philippium

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