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Created page with "==Key Stage 4== ===Meaning=== Group 1 elements, also known as '''Alkali Metals''' on the Periodic Table are the elements which have only one electron in th..."
==Key Stage 4==
===Meaning===
[[Group 1]] [[element]]s, also known as '''Alkali Metals''' on the [[Periodic Table]] are the [[element]]s which have only one [[electron]] in their [[Outer Shell|outer shell]].
{| class="wikitable"
|-
|[[File:PeriodicTableGroups.png|center|600px]]
|-
| style="height:20px; width:200px; text-align:center;" |[[Group 1]] [[element]]s are shown in light purple at the far left of the Periodic Table]].
|}
===About the Alkali Metals===
: The '''Alkali Metals''' have similar [[Chemical Property|chemical properties]] because they all have one [[electron]] on their [[Outer Shell|outer shell]].
: '''Alkali Metals''' all produce [[ion]]s with a +1 [[Relative Atomic Charge|relative charge]] because they lose an [[electron]] in [[Chemical Reaction|chemical reactions]].
===Chemical Properties===
: '''Alkali Metals''' are all highly [[Reactivity|reactive]] and will [[Oxidisation|oxidise]] quickly in the presence of [[Oxygen]].
: '''Alkali Metals''' all [[Chemical Reaction|react]] strongly with [[water]] to produce [[Metal Hydroxide|metal hydroxides]] and [[Hydrogen]] [[gas]].
: '''Alkali Metals''' all produce strong [[alkali]]s.
===Physical Properties===
: '''Alkali Metals''' have a low [[density]] compared to other [[metal]]s.
: '''Alkali Metals''' have a low [[Melting Point|melting point]] compared to other [[metal]]s.
: '''Alkali Metals''' are soft and can be easily cut.
: '''Alkali Metals''' all appear shiny (before they [[oxidisation|oxidise]]).
===Meaning===
[[Group 1]] [[element]]s, also known as '''Alkali Metals''' on the [[Periodic Table]] are the [[element]]s which have only one [[electron]] in their [[Outer Shell|outer shell]].
{| class="wikitable"
|-
|[[File:PeriodicTableGroups.png|center|600px]]
|-
| style="height:20px; width:200px; text-align:center;" |[[Group 1]] [[element]]s are shown in light purple at the far left of the Periodic Table]].
|}
===About the Alkali Metals===
: The '''Alkali Metals''' have similar [[Chemical Property|chemical properties]] because they all have one [[electron]] on their [[Outer Shell|outer shell]].
: '''Alkali Metals''' all produce [[ion]]s with a +1 [[Relative Atomic Charge|relative charge]] because they lose an [[electron]] in [[Chemical Reaction|chemical reactions]].
===Chemical Properties===
: '''Alkali Metals''' are all highly [[Reactivity|reactive]] and will [[Oxidisation|oxidise]] quickly in the presence of [[Oxygen]].
: '''Alkali Metals''' all [[Chemical Reaction|react]] strongly with [[water]] to produce [[Metal Hydroxide|metal hydroxides]] and [[Hydrogen]] [[gas]].
: '''Alkali Metals''' all produce strong [[alkali]]s.
===Physical Properties===
: '''Alkali Metals''' have a low [[density]] compared to other [[metal]]s.
: '''Alkali Metals''' have a low [[Melting Point|melting point]] compared to other [[metal]]s.
: '''Alkali Metals''' are soft and can be easily cut.
: '''Alkali Metals''' all appear shiny (before they [[oxidisation|oxidise]]).