AQA Jan 2012 Paper 1 Q5

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do not write outside the box a the element nitrogen forms compounds with metals and non metals nitrogen forms a nitride ion with the electron configuration s s p write the formula of the nitride ion mark b an element forms an ion q with a single negative charge that has the same electron configuration as the nitride ion identify the ion q mark c use the periodic table and your knowledge of electron arrangement to write the formula of lithium nitride mark d calcium nitride contains by mass of the metal calculate the empirical formula of calcium nitride show your working marks e write an equation for the reaction between silicon and nitrogen to form silicon nitride si n mark turn over wmp jan chem

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