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The general trend is a decrease in first ionisation energy, which is because as you descend the group the number of energy levels surrounding the positively charged nucleus increases. This means that the ...

Transition metals form coloured ions in solution. They have variable oxidation states, and often can be sued as catalysts. They are also able to form complexes with non-metal ligands, such as H2O or NH3, ...

In order for something to conduct electricity, there must be charged particles within the substance and these charged particles must be free to move.Metals consist of positive ions in a sea of delocalised...

As you go down the group, the outer electrons are further from the nucleus, this leads to a reduced attraction between the negative outer electrons and positive nucleus. Also, as there are more electrons,...

The -OH is an activating group, it donates its lone pair into the delocalised ring of electrons. This increases the electron density in the ring, making it more reactive.