Radioactive Decay - Revision history

Ellen References at 17:25, 18 December 2019

2019-12-18T17:25:38Z

Ellen References at 16:43, 27 November 2019

2019-11-27T16:43:54Z

Ellen References at 23:25, 10 November 2019

2019-11-10T23:25:26Z

NRJC: Created page with "==Key Stage 4== ===Meaning=== '''Radioactive decay''' is when an unstable isotope emits a particle or [[Electromagnetic Wave|electromagnetic wave]..."

2019-06-11T12:01:57Z

Created page with "==Key Stage 4== ===Meaning=== '''Radioactive decay''' is when an unstable isotope emits a particle or [[Electromagnetic Wave|electromagnetic wave]..."

New page

==Key Stage 4==
===Meaning===
'''Radioactive decay''' is when an [[Unstable Isotope|unstable isotope]] [[emit]]s a [[particle]] or [[Electromagnetic Wave|electromagnetic wave]] to become more [[Stable Isotope|stable]].

===About Radioactive Decay===
: During a '''radioactive decay''' an [[Unstable Isotope|unstable isotope]] may [[emit]]:
:*[[Alpha Radiation]] - An [[Ionising Radiation|ionising radiation]] which is two [[proton]]s and two [[neutron]]s (a [[Helium]] [[Atomic Nucleus|nucleus]]).
:*[[Beta Radiation]] - An [[Ionising Radiation|ionising radiation]] which is a fast moving [[electron]] ejected from the [[Atomic Nucleus|nucleus]].
:*[[Gamma Radiation]] - An [[Ionising Radiation|ionising radiation]] which is a very high [[frequency]] [[Electromagnetic Wave|electromagnetic wave]] [[emit]]ted from the [[Atomic Nucleus|nucleus]].
:*[[Neutron Radiation]] - A form of indirectly [[Ionising Radiation|ionising radiation]] consisting of a single [[neutron]] ejected from the [[Atomic Nucleus|nucleus]]. It causes [[Ionising Radiation|ionisation]] by causing other [[element]]s to become [[Unstable Isotope|unstable]] releasing [[Gamma-ray|gamma radiation]].
: The rate of [[Radioactive Decay|radioactive decay]] is known as the '[[Half Life]]' which is how long it takes for half of the [[Unstable Isotope|unstable isotopes]] in a sample of [[radioactive]] [[material]] to '''decay'''. This [[time]] is a constant for each type of [[radioactive]] [[material]] regardless of the quantity of [[Unstable Isotope|unstable isotopes]].

===Examples===
{| class="wikitable"
|-
|[[File:NuclearKey.png|center|200px]]
| style="height:20px; width:400px; text-align:center;" |This is a key to show the types of [[particle]]s in the following [[Radioactive Decay|decays]] of [[Unstable Isotope|unstable nuclei]].
|}

{| class="wikitable"
|-
|[[File:AlphaDecay3.png|center|300px]]
|[[File:BetaDecay3.png|center|300px]]
|-
| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is too [[massive]] and has too few [[neutron]]s relative to [[proton]]s so it [[Radioactive Decay|decays]] via [[Alpha Radiation|alpha emission]] reducing the [[Relative Atomic Mass|atomic mass]] by 4 and the [[Atomic Number|atomic number]] by 2.

<math>{}_Z^AX \rightarrow {}_{Z-2}^{A-4}Y + {}_2^4\alpha</math>
| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is too many [[neutron]]s so it [[Radioactive Decay|decay]]s via [[Beta Radiation|beta emission]] in which a [[neutron]] turns into a [[proton]] increasing the [[Atomic Number|atomic number]] by 1.

<math>{}_Z^AX \rightarrow {}_{Z+1}^{A}Y + {}_{-1}^0\beta</math>
|}

{| class="wikitable"
|[[File:GammaDecay3.png|center|300px]]
|[[File:NeutronDecay3.png|center|300px]]
|-
| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is has excess [[Vibrational Energy|vibrational energy]] so it [[Radioactive Decay|decays]] by [[emit]]ting a [[Gamma Radiation|gamma ray]]. After the [[Radioactive Decay|decay]] it still has the same [[Relative Atomic Mass|atomic mass]] and [[Atomic Number|atomic number]] but is no longer [[vibrating]].

<math>{}_Z^AX \rightarrow {}_Z^AX + {}_0^0\gamma</math>
| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it has too many [[neutron]]s relative to [[proton]]s so it [[Radioactive Decay|decays]] via [[Neutron Radiation|neutron radiation]] reducing the [[Relative Atomic Mass|atomic mass]] by 1.

<math>{}_Z^AX \rightarrow {}_{Z}^{A-1}Y + {}_0^1n</math>
|}

===Extra Information===
{{#ev:youtube|https://www.youtube.com/watch?v=TJgc28csgV0}}

← Older revision		Revision as of 17:25, 18 December 2019
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	:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Radioactive decay, pages 100-101, GCSE Physics, Pearson Edexcel '']		:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Radioactive decay, pages 100-101, GCSE Physics, Pearson Edexcel '']
	:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Radioactive decay, pages 156-163, GCSE Physics, CGP, Edexcel '']		:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Radioactive decay, pages 156-163, GCSE Physics, CGP, Edexcel '']
		+
		+	====OCR====
		+	:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Radioactive decay, pages 197-199, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']
		+	:[https://www.amazon.co.uk/gp/product/1782945687/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945687&linkCode=as2&tag=nrjc-21&linkId=9a598e52189317a20311d7a632747bc9 ''Radioactive decay, pages 74-80, Gateway GCSE Physics; The Revision Guide, CGP, OCR '']

← Older revision		Revision as of 16:43, 27 November 2019
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	:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Radioactive; contamination, page 120, GCSE Physics; Student Book, Collins, AQA '']		:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Radioactive; contamination, page 120, GCSE Physics; Student Book, Collins, AQA '']
	:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Radioactive; decay, pages 109, 112-13, 116-19, 217, GCSE Physics; Student Book, Collins, AQA '']		:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Radioactive; decay, pages 109, 112-13, 116-19, 217, GCSE Physics; Student Book, Collins, AQA '']
		+
		+	====Edexcel====
		+
		+	:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Radioactive decay, pages 100-101, GCSE Physics, Pearson Edexcel '']
		+	:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Radioactive decay, pages 156-163, GCSE Physics, CGP, Edexcel '']

← Older revision		Revision as of 23:25, 10 November 2019
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	===Extra Information===		===Extra Information===
	{{#ev:youtube\|https://www.youtube.com/watch?v=TJgc28csgV0}}		{{#ev:youtube\|https://www.youtube.com/watch?v=TJgc28csgV0}}
		+
		+
		+	===References===
		+	====AQA====
		+
		+	:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10216 ''Radioactive decay, pages 198-201, GCSE Combined Science; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Radioactive decay, pages 343-4, 347-9, GCSE Combined Science Trilogy 1, Hodder, AQA '']
		+	:[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 ''Radioactive decay, pages 96-97, 100-101, GCSE Physics; Third Edition, Oxford University Press, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Radioactive decay, pages 98-101, GCSE Physics, Hodder, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10217 ''Radioactive decay; alpha, pages 198, 199, 201, GCSE Combined Science; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10218 ''Radioactive decay; beta, pages 198, 199, 201, GCSE Combined Science; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10219 ''Radioactive decay; gamma, pages 198, 199, 201, 223, GCSE Combined Science; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Radioactive; contamination, page 120, GCSE Physics; Student Book, Collins, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Radioactive; decay, pages 109, 112-13, 116-19, 217, GCSE Physics; Student Book, Collins, AQA '']