Edexcel Jan 2017 (IAL) Paper 1 Q12

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A E R A S I H T N I E T I R W T O N O D 10 Which diagram best represents the electron densities in lithium iodide? (Total for Question 10 = 1 mark) 11 Which equation represents the lattice energy of magnesium nitride, Mg3N2? A 3Mg(s) + N2(g) (cid:111)(cid:3)Mg3N2(s) B 3Mg(g) + 2N(g) (cid:111)(cid:3)Mg3N2(s) C 3Mg2+(g) + 2N3(g) (cid:111)(cid:3)Mg3N2(g) D 3Mg2+(g) + 2N3(g) (cid:111)(cid:3)Mg3N2(s) 12 In which pair are the ions isoelectronic? A Li+ and O2 B Na+ and Cl C Mg2+ and S2 D Al3+ and F (Total for Question 11 = 1 mark) Use this space for any rough working. Anything you write in this space will gain no credit. (Total for Question 12 = 1 mark) A E R A S I H T N I E T I R W T O N O D A E R A S I H T N I E T I R W T O N O D *P48367A0524* Turn over<br />

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