|Metals of low atomic weight are called as light metals. Between light metals and heavy metals cut-off varies. Beryllium, Lithium, sodium, aluminium and magnesium are included. Light metals are less toxic when compared with heavy metals. Beryllium is toxic, but it is rarely found in large concentrations. Vanadium is not counted as a light metal but it is toxic. Some other light metals are toxic when they are in large amounts.
A journal is a periodical publication intended to further progress of science, usually by reporting new research. Most journals are highly specialized, although some of the oldest journals publish articles, reviews, editorials, short communications, letters, and scientific papers across a wide range of scientific fields. Journals contain articles that peer reviewed, in an attempt to ensure that articles meet the journal's standards of quality, and scientific validity. Each such journal article becomes part of the permanent scientific record.
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