[{"from": "human", "value": "Provide a brief overview of this molecule. [Be+2].[Br-1].[Br-1]"}, {"from": "gpt", "value": "The molecule is a bromide of beryllium. Beryllium is a lightweight alkaline earth metal with the atomic number 4. It is a relatively rare element found naturally only combined with other elements in minerals. Bromine is a halogen element with the symbol Br and atomic number 35. Diatomic bromine does not occur naturally, but bromine salts can be found in crustal rock. (L625, L24)"}]