Cunningham, Burris B. Formerly, Radiation Laboratory, University of California, Berkeley, California.
Last reviewed:February 2022
- Chemical properties
- The metals and their uses
- Related Primary Literature
- Additional Reading
One of the elements of atomic numbers 21–31, 39–49, and 71–81. The symbols of these elements, along with their atomic numbers and valence-shell electronic configurations, are given in Fig. 1. The elements are arranged in the order in which they appear in the long, or Bohr, form of the periodic table.
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