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QuestionsQ1.(a) Define the term first ionization energy.(2)............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. *(b) Explain why the first ionization energy of the elements down Group 1 decreases even though the atomic number increases.(2)............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. (c) The eleven successive ionization energies for sodium are given below.(i) Explain why the successive ionization energies increase.(1)............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. *(ii) Explain how these ionization energies give evidence for the electronic structure of sodium. You may use a sketch graph if you wish.(2)............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. (d) The first ionization energy of aluminium (element 13) is lower than that of magnesium (element 12).(i) Give the electronic structures of magnesium and of aluminium in s, p and d notation.(1)
Magnesium............................................................................................................................................. Aluminium............................................................................................................................................. *(ii) Explain the difference in the first ionization energies of the two metals.(1)............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. (Total for question = 9 marks)
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