(a)[2]
Use the information to help arrange the following metals from most reactive to least reactive: cobalt, magnesium, silver, sodium and zinc.
(b)[1]
Construct the equation for the reaction of cobalt(II) oxide, CoO, with magnesium.
(c)[1]
Predict the outcome when cobalt(II) carbonate is heated strongly.
(d)[2]
Explain, in terms of structure and bonding, why cobalt as a metal has a high melting point.
(e)[1]
A different isotope of cobalt has a nucleon number of 59. Write its symbol.