Beryllium (Be), element 4 – Learn Acer periodic table

Alkaline earth metal, atomic number 4.

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.

Symbol Be. Atomic mass 9.01218315 u. Group 2, period 2. Electron configuration [He] 2s2. Electrons per shell 2, 2. State at room temperature: Solid. Melting point 1286.8 °C, boiling point 2468.8 °C. Discovered by Louis Nicolas Vauquelin.

Element data from Wikipedia, CC BY-SA 3.0.

Beryllium (Be), element 4 – Learn Acer periodic table

Beryllium

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