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Light metals

Light metals are metals of low atomic weight. The cutoff between light metals and heavy metals varies. Lithium, beryllium, sodium, magnesium and aluminum are almost always included. Additional metals up to nickel are often included as well. Metals heavier than nickel are usually called heavy metals. Light metals are generally less toxic than heavy metals. Beryllium is toxic, but it is rarely found in large concentrations. Vanadium, not always counted as a light metal, is also toxic. Other light metals are toxic in large amounts.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Light_metals". A list of authors is available in Wikipedia.
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