Chemistry help. :]

[Extor]

The cells which power heart pacemakers contain lithium metal.

a) Why is lithium a good choice for the negative electrode.

b) Explain why water is not used in the electrolytic layer.



+rep for help :] xx

[superc]

Lithium is good as the negative electrode due to the fact that it is a highly reacive metal and it has a high number of electrons to give off (I think!)

Water will reacts with the lithium causeing a VERY dangerous metal fire. It is also a poor electolite.