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Group 0

1,435 bytes added, 15:46, 26 November 2018
Created page with "==Key Stage 4== ===Meaning=== Group 0 elements, also known as '''Nobel Gases''' on the Periodic Table are the elements which have a full Outer Shell|outer sh..."
==Key Stage 4==
===Meaning===
[[Group 0]] [[element]]s, also known as '''Nobel Gases''' on the [[Periodic Table]] are the [[element]]s which have a full [[Outer Shell|outer shell]].


{| class="wikitable"
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|[[File:PeriodicTableGroups.png|center|600px]]
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| style="height:20px; width:200px; text-align:center;" |[[Group 0]] [[element]]s are shown in grey at the right of the [[Periodic Table]].
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===About the Nobel Gases===
: [[Group 0]] used to be called '''Group 8''' but this caused confusion because most [[element]]s in [[Group 8]] have 8 [[electron]]s in their [[Outer Shell]] but [[Helium]] only has 2, so it was renamed [[Group 0]].
: The '''Nobel Gases''' are all [[inert]] which means they do not [[Chemical Reaction|react]] with other [[atom]]s.
: The '''Nobel Gases''' are all [[monatomic]] which means they exist only as single [[atom]]s and do not join to form any [[molecule]]s.
The '''Nobel Gases''' in order of the number of [[Electron Orbital|electron shells]]:
*[[Helium]] (He)
*[[Neon]] (Ne)
*[[Argon]] (Ar)
*[[Krypton]] (Kr)
*[[Xenon]] (Xe)
*[[Radon]] (Rn)

===Chemical Properties===
: The '''Nobel Gases''' are all [[inert]] (unreactive) because they have a full [[Outer Shell|outer shell]].

===Physical Properties===
: The '''Nobel Gases''' are all [[gas]]es at [[Room Temperature|room temperature]].
: The [[density]] and [[Boiling Point|boiling point]] all increase as you go down the [[Periodic Table]].