Beryllium named after "beryllos", the Greek name for the mineral beryl.

Beryllium is discovered in 1797 by Louis Nicolas Vauquelin of .

Beryllium is a very poisonous and inhalation can lead to an incurable inflammation of the lungs called berylliosis.

:zap: Properties of Beryllium :zap:

1. Atomic number: 4

2. Atomic symbol: Be

3. Atomic weight: 9.012182

4. Density: 1.85 grams per cubic centimeter

5. Phase at room temperature: Solid

6. Melting point:

       - 2,348.6 degrees Fahrenheit

       - 1,287 degrees Celsius

7. Boiling point:

       - 4,479.8 degrees Fahrenheit

       - 2,471 degrees Celsius

8. Electronegativity: 1.5

9. Ionization Energy: 9,3227

10. Number of isotopes: 12, including one stable isotope.

11: Most common isotopes:

      - 9Be (Natural abundance: 100 percent)

Source:

★ Live Science