82640
Descrição
Mapa Mental por oscar_shepherd, atualizado more than 1 year ago
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Criado por oscar_shepherd
aproximadamente 11 anos atrás
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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
- Reactivity increases
down the group
- 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
- Occurs when a MORE reactive metal takes the
place of a LESS reactive metal in a compound
- Oxidation and Reduction
- Oxygen+Reduction=Redox
- Electron transfer
- In reactions, electrons are transfered
- LOST
- Oxidation
- Oxidation
- GAINED
- Reduction
- Reduction
- In reactions, electrons are transfered
- Oxidising agent = gives O2 gets reduced
- Oxygen+Reduction=Redox
- Half equations
- Some displacement
reactions contain spectator
ions that we can cancel out
- Some displacement
reactions contain spectator
ions that we can cancel out
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