(a) Draw a Lewis dot and cross structure (including any lone pairs) for a NBr3molecule and determine the shape of the molecule and number of valenceelectrons.(b)Six ammonia ligands form a complex ion with Co²+.What is the overall charge of the complex ion?Write the formula for the complex ion.What is the coordination number of the complex ion?Explain how ammonia ligands form a complex ion with Co²+?What is the geometry of the complex ion?Would you expect the complex to be coloured? Explain why?i.ii.iii.iv.V.vi.

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(a) Draw a Lewis dot and cross structure (including any lone pairs) for a NBr3 molecule and determine the shape of the molecule and number of valence electrons. (b) Six ammonia ligands form a complex ion with Co²+. What is the overall charge of the complex ion? i. ii. iii. iv. V. vi. Write the formula for the complex ion. What is the coordination number of the complex ion? Explain how ammonia ligands form a complex ion with Co²+? What is the geometry of the complex ion? Would you expect the complex to be coloured? Explain why?