Periodic table / Bromine

Overview

Bromine (from Ancient Greek:βρῶμος, brómos, meaning "stench") is a chemical element with symbol Br, and atomic number 35. It is a halogen. The element was isolated independently by two chemists, Carl Jacob Löwig and Antoine Jerome Balard, in 1825–1826.

Electron configuration

The electron configuration of Bromine is [Ar] 3d10 4s2 4p5, with electron shells of 2, 8, 18, 7.

Physical and chemical properties

Bromine is classified as a nonmetal. It has an atomic mass of 79.904 and exists as a liquid at standard conditions.

Real-world uses of Bromine

Bromine plays an important role in chemistry and biology, and is used in industrial processes, manufacturing, or as a key component of compounds essential to life.

Interesting facts about Bromine

• Bromine has the atomic number 35 and chemical symbol Br.
• It belongs to period 4, group 17 of the periodic table.
• Bromine was discovered by Antoine Jérôme Balard.

Explore Bromine interactively

Want to compare Bromine with other elements or see it highlighted on the full table? Open the interactive periodic table and click on Br to explore properties, trends, and neighboring elements. You can also test your knowledge with our periodic table quiz game.