Difference between revisions of "Iodine"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | [[File: | + | [[File:IodineSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Iodine]].]] |
[[Iodine]] is a [[Group 7]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 53. | [[Iodine]] is a [[Group 7]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 53. | ||
===About Iodine=== | ===About Iodine=== | ||
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: [[Iodine]] is a purple [[solid]] at [[STP|room temperature]]. | : [[Iodine]] is a purple [[solid]] at [[STP|room temperature]]. | ||
==Key Stage 4== | ==Key Stage 4== | ||
| + | [[File:IKS4.PNG|right|200px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Iodine]].]] | ||
===Meaning=== | ===Meaning=== | ||
[[Iodine]] is a [[Group 7]] [[element]], on the [[Periodic Table]], with 53 [[proton]]s in the [[Atomic Nucleus|nucleus]]. | [[Iodine]] is a [[Group 7]] [[element]], on the [[Periodic Table]], with 53 [[proton]]s in the [[Atomic Nucleus|nucleus]]. | ||
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: The most [[Stable Isotope|stable isotope]] of [[Iodine]] has 74 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 127. | : The most [[Stable Isotope|stable isotope]] of [[Iodine]] has 74 [[neutron]]s in its [[Atomic Nucleus|nucleus]] giving it an [[Relative Atomic Mass|atomic mass]] of 127. | ||
: An [[atom]] of [[Iodine]] is missing one [[electron]] from having a full [[Outer Shell|outer shell]]. | : An [[atom]] of [[Iodine]] is missing one [[electron]] from having a full [[Outer Shell|outer shell]]. | ||
| − | : [[Iodine]] [[ion]]s gain 1 [[electron]] to get a full [[Outer Shell|outer shell]] and become [[Negative | + | : [[Iodine]] [[ion]]s gain 1 [[electron]] to get a full [[Outer Shell|outer shell]] and become [[Negative Charge|negatively charged]]. |
====Properties==== | ====Properties==== | ||
: [[Iodine]] is a [[non-metal]] [[element]]. | : [[Iodine]] is a [[non-metal]] [[element]]. | ||
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: [[Iodine]] kills [[bacteria]]. | : [[Iodine]] kills [[bacteria]]. | ||
: [[Iodine]] is a brown coloured [[gas]] at [[STP|standard temperature and pressure]]. | : [[Iodine]] is a brown coloured [[gas]] at [[STP|standard temperature and pressure]]. | ||
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| + | ===References=== | ||
| + | ====AQA==== | ||
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| + | :[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Iodine, page 102, GCSE Physics; Third Edition, Oxford University Press, AQA ''] | ||
| + | :[https://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 ''Iodine, page 61, GCSE Chemistry, CGP, AQA ''] | ||
| + | :[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 ''Iodine, page 61, GCSE Combined Science Trilogy; Chemistry, CGP, AQA ''] | ||
Latest revision as of 11:46, 5 March 2020
Contents
Key Stage 2
Meaning
Key Stage 3
Meaning
Iodine is a Group 7 element, on the Periodic Table, with an atomic number of 53.
About Iodine
Molecular Structure
- Iodine has the chemical formula I2.
Atomic Structure
- Iodine as 53 protons and 74 neutrons in its nucleus giving it an Atomic Number of 53 and an atomic mass of 127.
- An atom of Iodine is missing one electron from having a full outer shell.
Properties
- Iodine is a non-metal element.
- Iodine is a more reactive Halogen than Astatine but less reactive than Bromine.
- Iodine reacts with Hydrogen to produce Hydrogen Iodide which dissolves in water to produce Hydroiodic Acid.
- Iodine is a mild bleaching agent.
- Iodine kills bacteria.
- Iodine is a purple solid at room temperature.
Key Stage 4
Meaning
Iodine is a Group 7 element, on the Periodic Table, with 53 protons in the nucleus.
About Iodine
Molecular Structure
- Iodine has the chemical formula I2.
- Iodine atoms join together in a covalent bond.
 |
| A dot and cross diagram of a Iodine molecule. |
Atomic Structure
- The most stable isotope of Iodine has 74 neutrons in its nucleus giving it an atomic mass of 127.
- An atom of Iodine is missing one electron from having a full outer shell.
- Iodine ions gain 1 electron to get a full outer shell and become negatively charged.
Properties
- Iodine is a non-metal element.
- Iodine is a more reactive Halogen than Astatine but less reactive than Bromine.
- Iodine reacts strongly with Hydrogen to produce Hydrogen Iodide which dissolves in water to produce Hydroiodic Acid.
- Iodine is a mild bleaching agent.
- Iodine kills bacteria.
- Iodine is a brown coloured gas at standard temperature and pressure.