बेरीलियम तत्व के बारे में जानकारी (Information about beryllium element)


बेरीलियम तत्व के बारे में जानकारी (Information about beryllium element)

Beryllium

• 1.st ionization energy [eV] → 9.3226

• 2.nd ionization energy [eV] → 18.211

• 3.rd ionization energy [eV] → 153.893

• Atomic number → 4

• Atomic radius [pm] → 112

• Boiling point [°C] → 2970

• Brinell hardness [MPa] → 600

• Covalent radius [pm] → 90

• Density [g/cm3] → 1.828

• Discovery → 1828

• Electrical conductivity [S m-1] → 2.5 • 107

• Electron configuration → 1s2 2s2

• Electronegativity → 1.5

• Element category → Alkaline earth metals

• Group → II.A

• Hardness [Mohs scale] → 5.0-5.5

• Heat capacity [J K-1g-1] → 1.825

• Latin name → Beryllium

• Melting point [°C] → 1278

• Oxidation numbers → 2

• Period → 2

• Relative atomic mass → 9.012182

• Shear modulus [GPa] → 132

• Stable isotopes → 1

• State → Solid

• Symbol → Be

• Thermal conductivity [W m-1K-1] → 200

• Unstable isotopes → 3

• Vickers hardness [MPa] → 1670

• Young's modulus [GPa] → 287


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