AQA January 2010 – Unit 1 Q1

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section a answer all questions in the spaces provided pmt areas outside the box will not be scanned for marking ionisation energies provide evidence for the arrangement of electrons in atoms a complete the electron configuration of the mg ion s mark b i state the meaning of the term first ionisation energy marks b ii write an equation including state symbols to show the reaction that occurs when the second ionisation energy of magnesium is measured b mark iii explain why the second ionisation energy of magnesium is greater than the first ionisation energy of magnesium mark b iv use your understanding of electron arrangement to complete the table by suggesting a value for the third ionisation energy of magnesium ionisation energies of magnesium kjmol first second third fourth fifth mark wmp jan chem pmt areas outside the box will not be scanned for marking c state and explain the general trend in the first ionisation energies of the period elements sodium to chlorine trend explanation marks extra space d state how the element sulfur deviates from the general trend in first ionisation energies across period explain your answer how sulfur deviates from the trend explanation marks extra space e a general trend exists in the first ionisation energies of the period elements lithium to fluorine identify one element which deviates from this general trend mark turn over wmp jan chem

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