7. a) Calculate the differences in electronegativity between the elements in each of those compounds. (3 marks)
i) CaBr2
ii) Na3N
iii) CH4

b) Predict whether each of these compounds would be an ionic or a molecular compound and justify each prediction. (3 marks)

c) Rank the bonds in these compounds in order of decreasing ionic character. Where do we always find compounds containing metals, in this ranking order? (2 marks)

Question

7. a) Calculate the differences in electronegativity between the elements in each of those compounds. (3 marks)
	i) CaBr2
	ii) Na3N
	iii) CH4

b) Predict whether each of these compounds would be an ionic or a molecular compound and justify each prediction. (3 marks)

c) Rank the bonds in these compounds in order of decreasing ionic character. Where do we always find compounds containing metals, in this ranking order? (2 marks)