- Atomic Radius (Å)
Beryllium is a chemical element with symbol Be and atomic number 4. It is created through stellar nucleosynthesis and is a relatively rare element in the universe. It is a divalent element which occurs naturally only in combination with other elements in minerals.
4
Atomic Number
9.01
Atomic Mass (u)
1560.15
Melting Point (K)
2742
Boiling Point (K)
1.85
Density (solid: g/cm³, gas: g/liter)
1.4
Atomic Radius (Å)
0.96
Covalent Radius (Å)
1.57
Electronegativity
9.32
First Ionization Energy (eV)
-48
Electron Affinity
2
Number of Shells
2
Electron Valency
2, 2
Electron Shell Occupations
1.82
Specific Heat (J/g)