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82640
The Reactivity Series
Description
Chemistry Mind Map on The Reactivity Series, created by oscar_shepherd on 11/05/2013.
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chemistry
chemistry
Mind Map by
oscar_shepherd
, updated more than 1 year ago
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Created by
oscar_shepherd
almost 11 years ago
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Resource summary
The Reactivity Series
Alkali Metals
Reactivity increases down the group
Reactions involve the loss of the outermost electron which changes the metal atom into a metal 1+ ion
Metals float because they are less dense than water
Spin because hydrogen is being given off
Reaction is exothermic. Metals melt in a ball
For the more reactive metals the hydrogen explodes
The outer electron (-) gets further from nucleus (+) as we go down the group. This reduces the force of attraction
Displacement Reactions
Occurs when a MORE reactive metal takes the place of a LESS reactive metal in a compound
If a metal is below carbon in the reacivity series, then carbon can be a cheap way of removing oxygen from the oxide
Oxidation and Reduction
Oxygen+Reduction=Redox
Electron transfer
In reactions, electrons are transfered
LOST
Oxidation
GAINED
Reduction
Oxidising agent = gives O2 gets reduced
Half equations
Some displacement reactions contain spectator ions that we can cancel out
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