Bromine
Contents
Key Stage 2
Key Stage 3
Meaning
File:BromineSymbol.png
The chemical symbol for Bromine.
Bromine is a Group 7 element, on the Periodic Table, with an atomic number of 35.
About Bromine
- Bromine has the chemical formula Br2.
- Bromine as 35 protons and 45 neutrons in its nucleus giving it an Atomic Number of 35 and an atomic mass of 80.
- Bromine is a more reactive Halogen than Iodine but less reactive than Chlorine.
- Bromine reacts strongly with Hydrogen to produce Hydrogen Chloride which dissolves in water to produce Hydrochloric Acid.
- Bromine is a bleaching agent.
- Bromine kills bacteria.
- Bromine is a pale green coloured gas at room temperature.
- An atom of Bromine is missing one electron from having a full outer shell.
- Bromine ions gain 1 electron to get a full outer shell and become negatively charged.
Key Stage 4
Meaning
Bromine is a Group 2 element, on the Periodic Table, with 35 protons in the nucleus.
About Bromine
- Bromine has the chemical formula Br2.
- The most stable isotope of Bromine has 45 neutrons in its nucleus giving it an atomic mass of 80.
- Bromine is a more reactive Halogen than Iodine but less reactive than Chlorine.
- Bromine reacts strongly with Hydrogen to produce Hydrogen Bromide which dissolves in water to produce Hydrobromic Acid.
- Bromine is a bleaching agent.
- Bromine kills bacteria.
- Bromine is a brown coloured gas at standard temperature and pressure.
- An atom of Bromine is missing one electron from having a full outer shell.
- Bromine ions gain 1 electron to get a full outer shell and become negatively charged.