Difference between revisions of "Beryllium"

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Revision as of 16:00, 10 February 2007

Beryllium
Be
In situ availability:
Necessity:
Atomic number: 4
Atomic mass: 9.012182
group: 2
period: 2
normal phase: Solid
series: Alkaline earth metals
density: 0.1786 g/L
melting point: 1560K,
1287°C,
2349°F
boiling point: 2742K,
2469°C,
4476°F
HN/AN/A
Li ← Be → B
NaMgN/A
Atomic radius (pm): 105
Bohr radius (pm): 112
Covalent radius (pm): 90
Van der Waals radius (pm):
ionic radius (pm): (+2) 45
1st ion potential (eV): 9.32
Electron Configuration
1s2
2s2
Electrons Per Shell
2, 2
Electronegativity: 1.57
Electron Affinity: Unstable anion
Oxidation states: 2
Magnetism: Diamagnetic
Crystal structure: Hexagonal

Beryllium is a Alkaline earth metal in group 2. It has a Hexagonal crystalline structure. This element has a stable isotope of 9




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