Unstable Isotope - Revision history

NRJC at 10:55, 7 March 2019

2019-03-07T10:55:31Z

NRJC at 10:42, 7 March 2019

2019-03-07T10:42:13Z

NRJC at 10:32, 7 March 2019

2019-03-07T10:32:46Z

NRJC: /* Key Stage 4 */

2019-03-07T10:31:46Z

‎Key Stage 4

NRJC at 10:31, 7 March 2019

2019-03-07T10:31:14Z

NRJC at 10:29, 7 March 2019

2019-03-07T10:29:57Z

NRJC at 09:42, 7 March 2019

2019-03-07T09:42:09Z

NRJC: Created page with "==Key Stage 4== ===Meaning=== '''Unstable Isotopes''' are isotopes which radioactively decay to form new stable isotopes of the sa..."

2019-03-07T09:39:01Z

Created page with "==Key Stage 4== ===Meaning=== '''Unstable Isotopes''' are isotopes which radioactively decay to form new stable isotopes of the sa..."

New page

==Key Stage 4==
===Meaning===
'''Unstable Isotopes''' are [[isotope]]s which [[Radioactive Decay|radioactively decay]] to form new [[Stable Isotope|stable isotopes]] of the same [[element]] or a different [[element]].

===About Unstable Isotopes===
: An [[isotope]] may be '''unstable''' if it has too many, too few [[neutron]]s or the [[Atomic Nucleus|nucleus]] is too [[massive]].
: An '''unstable [[isotope]]''' may [[Radioactive Decay|decay]] causing it to transmute into a new [[element]] or a more [[Stable Isotope|stable isotope]] of the same [[element]] by releasing a [[particle]] from the [[Atomic Nucleus|nucleus]].
: An '''unstable [[isotope]]''' may be too [[massive]] so it can lose an [[Alpha Particle|alpha particle]] to become a less [[massive]] [[element]] or it can split into two smaller, more [[Stable Isotope|stable]] [[element]]s in a process called [[Nuclear Fission|nuclear fission]].

@@ Line 37: / Line 37: @@
 |-
 | 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]].
-| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is far too [[massive]] and has too many [[neutron]]s so it [[Radioactive Decay|decay]]s by splitting into two smaller, more [[Stable Isotope|stable]] [[element]]s and releases some [[neutron]]s.
+| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is far too [[massive]] and has too many [[neutron]]s so it splits into two smaller, more [[Stable Isotope|stable]] [[element]]s and releases some [[neutron]]s. This is not a [[Radioactive Decay|radioactive decay]] and is referred to as [[Nuclear Fission|nuclear fission]].
 |}

@@ Line 17: / Line 17: @@
 |-
 |[[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]].
+|[[File:NeutronDecay3.png|center|300px]]
 |}
@@ Line 25: / Line 28: @@
 |[[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]] or 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.
+| 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.
 | 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.
 |}

@@ Line 26: / Line 26: @@
 |-
 | style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is too [[massive]] or 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.
-| 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]] increasing the [[Atomic Number|atomic number]] by 1.
+| 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.
 |}

@@ Line 16: / Line 16: @@
 {| class="wikitable"
 |-
-|[[File:NuclearKey.png|center|300px]]
+|[[File:NuclearKey.png|center|200px]]
-| style="height:20px; width:300px; 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]].
+| 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]].
 |}

@@ Line 33: / Line 33: @@
 |[[File:Fission3.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]]. 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]].
+| 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]].
 | style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is far too [[massive]] and has too many [[neutron]]s so it [[Radioactive Decay|decay]]s by splitting into two smaller, more [[Stable Isotope|stable]] [[element]]s and releases some [[neutron]]s.
 |}

← Older revision		Revision as of 10:29, 7 March 2019
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	: An '''unstable [[isotope]]''' may be too [[massive]] so it can lose an [[Alpha Particle\|alpha particle]] to become a less [[massive]] [[element]] or it can split into two smaller, more [[Stable Isotope\|stable]] [[element]]s in a process called [[Nuclear Fission\|nuclear fission]].		: An '''unstable [[isotope]]''' may be too [[massive]] so it can lose an [[Alpha Particle\|alpha particle]] to become a less [[massive]] [[element]] or it can split into two smaller, more [[Stable Isotope\|stable]] [[element]]s in a process called [[Nuclear Fission\|nuclear fission]].
	: An '''unstable [[isotope]]''' may be [[vibrate\|vibrating]] with excess [[energy]] so to lose this [[energy]] it will [[emit]] [[Gamma Radiation\|gamma radiation]].		: An '''unstable [[isotope]]''' may be [[vibrate\|vibrating]] with excess [[energy]] so to lose this [[energy]] it will [[emit]] [[Gamma Radiation\|gamma radiation]].
		+
		+	{\| class="wikitable"
		+	\|-
		+	\|[[File:NuclearKey.png\|center\|300px]]
		+	\| style="height:20px; width:300px; 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]] or 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.
		+	\| 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]] increasing the [[Atomic Number\|atomic number]] by 1.
		+	\|}
		+
		+	{\| class="wikitable"
		+	\|[[File:GammaDecay3.png\|center\|300px]]
		+	\|[[File:Fission3.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]]. 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]].
		+	\| style="height:20px; width:300px; text-align:center;" \|This [[Atomic Nucleus\|nucleus]] is [[Unstable Isotope\|unstable]] because it is far too [[massive]] and has too many [[neutron]]s so it [[Radioactive Decay\|decay]]s by splitting into two smaller, more [[Stable Isotope\|stable]] [[element]]s and releases some [[neutron]]s.
		+	\|}

@@ Line 4: / Line 4: @@
 ===About Unstable Isotopes===
-: An [[isotope]] may be '''unstable''' if it has too many, too few [[neutron]]s or the [[Atomic Nucleus|nucleus]] is too [[massive]].
+: An [[isotope]] may be '''unstable''' if:
 : An '''unstable [[isotope]]''' may [[Radioactive Decay|decay]] causing it to transmute into a new [[element]] or a more [[Stable Isotope|stable isotope]] of the same [[element]] by releasing a [[particle]] from the [[Atomic Nucleus|nucleus]].
 : An '''unstable [[isotope]]''' may be too [[massive]] so it can lose an [[Alpha Particle|alpha particle]] to become a less [[massive]] [[element]] or it can split into two smaller, more [[Stable Isotope|stable]] [[element]]s in a process called [[Nuclear Fission|nuclear fission]].