WAEC Chemistry 2011 Theory — Question 10
Question 10 of 31 from the West African Examinations Council (WAEC) Chemistry 2011 Theory paper, with the correct answer and a full explanation.
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2(c)(i) Write the formula of the compound formed between element V and element W. (ii) State the type of bond formed in 2(c)(i) above. Explain your answer.
Model answer
(i) 11V=2,8,1 (loses one electron, combining power 1); 16W=2,8,6 (gains two electrons, combining power 2). Formula: V2W. (ii) Ionic bond/electrovalent bond - the union involves a transfer of electrons.
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