ant bulbs Study the information in the table below and answer the questions that follow. The letters do not represent the actual symbols of the elements Element Electronic configuration Boiling point X 2.7 -188°C Y 2.8.7 -35c Z 2.8.8.7 59°C (a) What is the general name given to the group in which the elements X, Y and Z belong? (b) Select two elements which are coloured gases (c) Explain why Z has the highest boiling point (d) Write an equation for the reaction of element Z with iron metal​