Bromine atom & ion lab
Change the electron count of Bromine and inspect its charge, shells and reviewed atomic properties.
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Scientific learning path
- 01UnderstandLive
- 02ExploreLive
- 03ExperimentLive
- 04ObserveLive
- 05ExplainLive
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Explanation mode
Core label represents the fixed nuclear charge; individual neutrons are not inferred from standard atomic weight.
Reviewed atomic properties
Unavailable measurements remain explicitly unavailable.
First ionization energy1139.9 kJ mol⁻¹
Covalent radius120 pm
Electronegativity2.96 Pauling
One of only two elements that are liquid at 298 K (the other is mercury).
Description of this simulation
Bromine is neutral here: 35 protons are balanced by 35 electrons across shells 2, 8, 18, 7.
Quick test · 3 questions
Br
Bromine
- Protons
- 35
- Electrons
- 35
- Shells
- 2 · 8 · 18 · 7
- Configuration
- [Ar] 3d10 4s2 4p5
- Common oxidation states
- -1, 1, 3, 5, 7
- Phase near room conditions
- liquid
What this model shows — and what it simplifies
Educational ModelThe nuclear charge stays fixed at 35 protons, which is what defines Bromine.
Where do we see this in real life?
The electron count and measured properties of Bromine help determine how it bonds, reacts and is identified in chemical materials.
Explain this result
Scientific review record
Building- Module version
- v1 bundled
- Published
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- Last reviewed
- Not yet verified
- Academic level
- Undergraduate
- Reviewer
- Not publicly assigned
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