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beryllium: Quick Facts

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Facts

Also Known As Be • glucinium

Photos

A periodic table element box for beryllium displays its atomic number 4, symbol Be, atomic weight 9.0121831, electron configuration, and name. Icons indicate it is an alkaline-earth metal, solid at room temperature, with a hexagonal crystal structure and equal acid-base properties for higher-valence oxides. A key at the bottom explains the symbols.
Figure 12: The energy levels of three nuclei with A = 6, relative to the ground state of 6Li after subtraction of the calculated electrostatic energy. The isospin T = 1 levels exist in all three nuclei.
decay of beryllium-7
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Key People

Friedrich Wöhler
Friedrich Wöhler
German chemist
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Maurice Goldhaber
American physicist
Vauquelin, lithograph by François-Séraphin Delpech
Nicolas-Louis Vauquelin
French chemist
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Hans Goldschmidt
German chemist

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