The Reactivity Series

Alkali Metals
1. Reactivity increases down the group
2. Reactions involve the loss of the outermost electron which changes the metal atom into a metal 1+ ion
3. Metals float because they are less dense than water
4. Spin because hydrogen is being given off
5. Reaction is exothermic. Metals melt in a ball
6. For the more reactive metals the hydrogen explodes
7. The outer electron (-) gets further from nucleus (+) as we go down the group. This reduces the force of attraction
Displacement Reactions
1. Occurs when a MORE reactive metal takes the place of a LESS reactive metal in a compound
2. 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
1. Oxygen+Reduction=Redox
2. Electron transfer
  1. In reactions, electrons are transfered
  2. LOST
    1. Oxidation
  3. GAINED
    1. Reduction
3. Oxidising agent = gives O2 gets reduced
Half equations
1. Some displacement reactions contain spectator ions that we can cancel out

Zusammenfassung der Ressource

	Erstellt von oscar_shepherd vor etwa 11 Jahre