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==Key Stage 3==
===Meaning===
[[File:BromineSymbolBromineSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Bromine]].]]
[[Bromine]] is a [[Group 7]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 35.
===About Bromine===
====Molecular Structure====
: [[Bromine]] has the [[Chemical Formula|chemical formula]] [[Bromine| Br<sub>2</sub>]].
====Atomic Structure====
: [[Bromine]] as 35 [[proton]]s and 45 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Atomic Number]] of 35 and an [[Relative Atomic Mass|atomic mass]] of 80.
: An [[atom]] of [[Bromine]] is missing one [[electron]] from having a full [[Outer Shell|outer shell]].
====Properties====
: [[Bromine]] is a [[non-metal]] [[element]].
: [[Bromine]] is a more [[Reactivity|reactive]] [[Halogen]] than [[Iodine]] but less [[Reactivity|reactive]] than [[Chlorine]].
: [[Bromine]] [[Chemical Reaction|reacts]] strongly with [[Hydrogen]] to produce [[Hydrogen ChlorideBromide]] which [[dissolve]]s in [[water]] to produce [[Hydrochloric Hydrobromic Acid]].
: [[Bromine]] is a [[bleach]]ing agent.
: [[Bromine]] kills [[bacteria]].
: [[Bromine]] is a pale green coloured [[gas]] at [[STP|room temperature]].
==Key Stage 4==
[[File:BrKS4.PNG|right|200px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Bromine]].]]
===Meaning===
[[Bromine]] is a [[Group 27]] [[element]], on the [[Periodic Table]], with 35 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About Bromine===
====Molecular Structure====
: [[Bromine]] has the [[Chemical Formula|chemical formula]] [[Bromine|Br<sub>2</sub>]].
: [[Bromine]] [[atom]]s join together in a [[Covalent Bond|covalent bond]].
{| class="wikitable"
|-
|[[File:BromineDotandCrossDiagram.png|center|400px]]
|-
| style="height:20px; width:200px; text-align:center;" |A [[Dot and Cross Diagram|dot and cross diagram]] of a [[Bromine]] [[molecule]].
|}
====Atomic Structure====
: The most [[Stable Isotope|stable isotope]] of [[Bromine]] has 45 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 80.
: An [[atom]] of [[Bromine]] is missing one [[electron]] from having a full [[Outer Shell|outer shell]].
: [[Bromine]] [[ion]]s gain 1 [[electron]] to get a full [[Outer Shell|outer shell]] and become [[Negative Charge|negatively charged]].
====Properties====
: [[Bromine]] is a [[non-metal]] [[element]].
: [[Bromine]] is a more [[Reactivity|reactive]] [[Halogen]] than [[Iodine]] but less [[Reactivity|reactive]] than [[Chlorine]].
: [[Bromine]] [[Chemical Reaction|reacts]] strongly with [[Hydrogen]] to produce [[Hydrogen Bromide]] which [[dissolve]]s in [[water]] to produce [[Hydrobromic Acid]].
: [[Bromine]] kills [[bacteria]].
: [[Bromine]] is a brown coloured [[gas]] at [[STP|standard temperature and pressure]].
===References=======AQA====: An [[atomhttps://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945962&linkCode=as2&tag=nrjc-21&linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''Bromine, page 61, GCSE Chemistry, CGP, AQA '']] of [:[https://www.amazon.co.uk/gp/product/178294639X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294639X&linkCode=as2&tag=nrjc-21&linkId=51599bb45a2bfaf7c1b6a978b2ca2616 ''Bromine, page 61, GCSE Combined Science Trilogy; Chemistry, CGP, AQA '']] is missing one [[electron]] from having a full [[Outer Shell|outer shell]].: [[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Bromine, reaction with alkenes, pages 148, GCSE Combined Science Trilogy 2, Hodder, AQA '']] [[ion]]s gain 1 [[electron]] to get a full [[Outer Shell|outer shell]] and become [[Negative Charged|negatively charged]].