Noble metals

Definitions

  • Webster's Revised Unabridged Dictionary
    • Noble metals (Chem) silver, gold, and platinum; -- so called from their resistance to oxidation by air and to dissolution by acids. Copper, mercury, aluminium, palladium, rhodium, iridium, and osmium are sometimes included.
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Chambers's Twentieth Century Dictionary
    • Noble metals gold, silver, platinum, so called because they keep their lustre when exposed to the air
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Etymology

Chambers's Twentieth Century Dictionary
Fr.,—L. metallum—Gr. metallon, a mine, a metal.

Usage

In literature:

A natural alloy of gold containing 20 per cent silver, termed electrum, is the lowest grade of the noble metal.
"Getting Gold" by J. C. F. Johnson
It was no noble metal, only yellow mica!
"A Word Only A Word, Complete" by Georg Ebers
These metals, termed the noble metals, do not oxidize, but they fuse.
"A System of Instruction in the Practical Use of the Blowpipe" by Anonymous
But now, at the first and yet final trial, she is proved and found to be of noble metal.
"An Introduction to the Study of Browning" by Arthur Symons
At a distance the young nobles were at their sports, and the shouts of the boys and the clash of the metal hurles resounded in the evening air.
"The Irish Fairy Book" by Various
In choice pieces of the noble metals, the artistic work of the goldsmith was of more value than its weight.
"Pictures of German Life in the XVth XVIth and XVIIth Centuries, Vol. II." by Gustav Freytag
Any thing but metal, it seemed to me, must have been burnt out by the fiery draughts which we saw the noble chief take down.
"Buffalo Land" by W. E. Webb
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In poetry:

Thou man of noble mould!
Whose metal grows not cold
Beneath the hammer of the hurrying years;
A fiery breath doth blow
Across its fervid glow,
And still its resonance delights our ears;
"Tribute To Oliver Wendell Holmes" by Julia Ward Howe

In news:

We track the fortunes of former employees as they retrain for a brighter future, including those at Noble Metal Processing in Warren.
It's a noble pursuit for Black Tusk, really: Fully commit to brewing a blend of swamp metal.
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In science:

The λ for Au decreases with pressure and hω i2 increases with pressure, which is very similar to others noble metal Cu and Ag.
Tc map and superconductivity of simple metals at high pressure
In this section we show our main results and discuss their relevance to experiments. A positive Fano parameter q ≥ 0 is typically found in our calculations for parameters charaterizing the noble metal surface, the adsorbate and their mutual interaction.
Simple model for scanning tunneling spectroscopy of noble metal surfaces with adsorbed Kondo impurities
We do not find much dependence of our results with the workfunction or the height of the surface barrier so we fix V0 = 13.05 eV and the workfunction W = 4.95 eV, which are typical values for noble metal surfaces.
Simple model for scanning tunneling spectroscopy of noble metal surfaces with adsorbed Kondo impurities
We have introduced an Anderson model in an appropriate orthogonalized basis to analyze STM measurements of noble metal surfaces with adsorbed transition metal atoms. A realistic surface potential (JJJ potential), a single d3z2−r2 adsorbate orbital and a s-tip orbital are used to compute the parameters of the model.
Simple model for scanning tunneling spectroscopy of noble metal surfaces with adsorbed Kondo impurities
None of the noble gases (He, Ne, Ar, Kr, Xe, Rn) are known to superconduct. A report on xenon indicates its transforms into a metallic state but without showing signs of superconductivity .
Assembling the puzzle of superconducting elements: A Review
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