Schubert, Jack Radiation Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.
Last reviewed:June 2020
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A chemical element, chemical symbol Be, atomic number 4, and atomic weight 9.0122. Beryllium is the first element in the group called alkaline-earth metals on the periodic table (Fig. 1). See also: Alkaline-earth metals; Atomic number; Chemical element; Periodic table
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