Bromine (Br): Properties, Uses and Facts in 3D
Bromine is element 35 on the periodic table, a halogen, so it is a nonmetal. At room temperature it is a liquid. Open it in the 3D Periodic Table to spin its tile, see its electron shells and read its story.
Explore in 3DBromine quick facts
| Atomic number | 35 |
|---|---|
| Symbol | Br |
| Atomic mass | 79.904 |
| Category | Halogen |
| Group and period | Group 17, period 4 |
| Block | p-block |
| State at room temperature | Liquid |
| Electron configuration | [Ar] 3d¹⁰ 4s² 4p⁵ |
| Electrons per shell | 2, 8, 18, 7 |
| Discovered | 1826, Balard |
What is bromine used for?
- Flame retardants in electronics
- Pharmaceuticals & dyes
- Water purification
Interesting facts about bromine
- Bromine is one of only two elements that are liquid at room temperature (the other is mercury)
- The word "bromine" comes from Greek "bromos" meaning stench. It smells awful
- Bromine compounds give the deep purple dye Tyrian purple its colour. Once more valuable than gold
Bromine was discovered in 1826 by Balard in France.
Where bromine sits on the periodic table
Bromine is in group 17, period 4. Tap any element to open its page.
Other halogens
Bromine questions
What is the atomic number of bromine?
Bromine has atomic number 35, so every bromine atom has 35 protons in its nucleus. Its symbol is Br and its atomic mass is 79.904.
Is bromine a metal?
Bromine is a nonmetal. On the periodic table it is grouped as a halogen, found in group 17, period 4.
What is the electron configuration of bromine?
The electron configuration of bromine is [Ar] 3d¹⁰ 4s² 4p⁵. Its electrons sit in 4 shells: 2, 8, 18, 7.
What is bromine used for?
Bromine is used for flame retardants in electronics, pharmaceuticals & dyes and water purification.
Who discovered bromine?
Bromine was discovered in 1826 by Balard in France.
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