WAEC Chemistry 2011 Theory — Question 9

Question 9 of 31 from the West African Examinations Council (WAEC) Chemistry 2011 Theory paper, with the correct answer and a full explanation.

2(b) What is the: (i) charge on the ion formed in 2(a)(iv) above? (ii) group name of the element(s) in 2a(i) above?

Model answer

(i) W forms an anion with a charge of -2 (16W=2,8,6; it gains two electrons to attain the octet structure). (ii) Alkali metals.

…and/or go further with premium services and No Ads.