Rhodium

 Rhodium 
Rh
Atomic Number: 45
Atomic Weight: 102.9055
Element Type: Transition Metal
Crystal Structure: Cubic Face Centered
Melting Point: 1964.0°C = 3567.2°F = 2237.15 K
Boiling Point: 3695.0°C = 6683.0°F = 3968.15 K
Critical Temp: °C = °F = K
Atomic Radius: 1.83 Å (Å = Angstrom = 10-10 m)
Covalent Radius: 1.25 Å
Electronegativity: 2.28

History

(Gr. rhodon, rose) Wollaston discovered rhodium in 1803-4 in crude platinum ore hepresumably obtained from South America.


Sources

Rhodium occurs native with other platinum metals in river sands of the Urals and inNorth and South America. It is also found with other platinum metals in the copper-nickelsulfide area of the Sudbury, Ontario region. Although the quantity occurring here is verysmall, the large tonnages of nickel processed make the recovery commercially feasible. Theannual world production of rhodium is only 7 or 8 tons.

Search

Loading



Sponsors

USC University of Southern California Dornsife College Physics and Astronomy Department McMaster University Physics and Astronomy Department

Science Quote

'The strength and weakness of physicists is that we believe in what we can measure. And if we can't measure it, then we say it probably doesn't exist. And that closes us off to an enormous amount of phenomena that we may not be able to measure because they only happened once. For example, the Big Bang. ... That's one reason why they scoffed at higher dimensions for so many years. Now we realize that there's no alternative... '

Michio Kaku
(1947-)

Deal of the Day

Image of Black Hawk Wolf RC Helicopter. Click on this image for more info. Black Hawk Wolf RC Helicopter
Regular Price: $39.99
Today's Price: $14.00
Easy to fly 3 channel mini remote-controlled helicopter. Buy it now! Deal ends at midnight!

Top Selling

Here are our physics & astronomy bestsellers:
Mini Plasma Ball
Slide Making Kit
The Ultimate Geek Pen
Top Secret - Spinning Top
Thermodynamic Drinking Bird
Wood Grain Newtons Cradle
Deluxe 3D Mirascope
Solar Radiometer
Periscope
Solar Science 4M Kit