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d.Summarize the chemical properties indicating that calcium and magnesium belong to the same family of elements.2 markse.Which of the four metals shows the greatest chemical reactivity? Mention at least three arguments to sustain your answer. 4 marksf.Explain the difference in the reactivity of the four metals. Take the ionization energy into account in your answer. You should find a very clear link between the relative reactivity of the four elements and their ionization energy. 3 marksg.Based on your observations, should caesium, element 55, be more or less reactive than potassium? 2 marksh.Based on your observations, should beryllium, element 4, react vigorously with water? Justify your answer. 2 marksTotal 28 marksSubmission InstructionsSubmit your assignment using the drop box on the Assignment page for this unit.