(a)[2]
Complete Fig. 8.1 so that it shows the electronic configuration of a potassium ion and the charge on that ion.
(b)[2]
Deduce the numbers of protons and neutrons in the chloride ion shown.
(c(i))[2]
Define what electrolysis means.
(c(ii))[3]
State the product names formed at each electrode and the observations at the positive electrode.
(d)[1]
Graphite electrodes are inert. Name one more inert electrode.
(e(i))[1]
Name the bonding type in diamond.
(e(ii))[1]
Use Fig. 8.2 to explain the reason diamond is used in cutting tools.