(a(i))[2]
State what is meant by the term isotopes.
(a(ii))[1]
State the nucleon number of manganese.
(a(iii))[3]
Complete the table to show the numbers of protons, neutrons and electrons in a $^{52}_{24}\text{Cr}^{3+}$ ion.
(b(i))[2]
Give the colours of the following hydrated salts. • hydrated copper(II) sulfate • hydrated cobalt(II) chloride
(b(ii))[2]
State two other chemical properties of transition elements.
(c(i))[1]
Explain why transition elements and Group I elements conduct electricity.
(c(ii))[1]
State the property that describes a material which can be hammered into shape.
(d)[2]
Describe two other ways in which the physical properties of transition elements differ from Group I elements.