Monday, May 23, 2016

Metals

Metals take up about three-fourths of the periodic table of elements, of 75%.  Some familiar ones are gold, copper, silver, zinc, aluminum, iron, lead, mercury, magnesium, and chromium.
A metal is a substance that is a good conductor of heat and electricity.
The melting points of metals are in a wide range of temperatures.
Image result for beryllium
Beryllium
Metals with high melting points are useful because they can withstand high temperatures.  The aerospace industry uses beryllium to stop space shuttle as it lands.

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