Cliff wrote:

On Sat, 28 Jan 2006 20:34:57 -0600, "Martin H. Eastburn"
wrote:

When you get down to the Chemical chart - most of the 'upper' part -
Above the rare earths - most of the top is a metal.

HUH?

Hydrogen on the left and then Nitrogen, Ox, F, the Noble gases
S, CL Br I and ?maybe At.

Hydrogen is a metal, right?
Fits right in above Lithium .....

Cliff:

You didn't know that Hydrogen can be considered a metal under the right
conditions, those conditions being extreme pressure?

================================================== ====
Hydrogen:

Under extreme pressures, hydrogen can actually act like a metal by, for
example, conducting electricity and reflecting light. Some planetary
scientists believe that Jupiter's immense magnetic field is created by
metallic hydrogen in its core. The immense pressure at the center of
Jupiter might prevent each hydrogen atom's electron from binding to a
single nucleus. Instead, the electrons might be shared by all the
nuclei, as are electrons in a metal. This would make hydrogen conduct
electricity like other magnetic metals. Scientists have used extremely
high temperatures (approximately 5000° C or 9000° F) and high pressures
(1.8 million times the normal pressure of Earth's atmosphere at sea
level) to temporarily transform hydrogen into a metal.


"Hydrogen," Microsoft® Encarta® Encyclopedia 2000. © 1993-1999 Microsoft
Corporation. All rights reserved.
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http://en.wikipedia.org/wiki/Hydrogen

At standard temperature and pressure, hydrogen forms a diatomic gas, H2,
with a boiling point of only 20.27 K and a melting point of 14.02 K.[1]
Under extreme pressures, such as those at the center of gas giants, the
molecules lose their identity and the hydrogen becomes a metal (metallic
hydrogen).
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BottleBob
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