AQA Jan 2013 Paper 1 Q1

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section a answer all questions in the spaces provided do not write outside the box a state the meaning of the term mass number of an isotope mark b give the symbol of the element that has an isotope with a mass number of and has neutrons in its nucleus mark c the following shows a simplified diagram of a mass spectrometer sample to vacuum pump detector c i state what happens to the sample in the parts labelled p and q p q marks wmp jan chem do not write outside the box c ii in a mass spectrometer the isotopes of an element are separated two measurements for each isotope are recorded on the mass spectrum state the two measurements that are recorded for each isotope measurement measurement marks d a sample of element r contains isotopes with mass numbers of and in a ratio of abundance d i calculate the relative atomic mass of r give your answer to one decimal place marks d ii identify r mark d iii all the isotopes of r react in the same way with concentrated nitric acid state why isotopes of an element have the same chemical properties mark extra space turn over wmp jan chem

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