Question 1 Define the term valency? Question 2 What are monovalent ion. Give example? Question 3 What are divalent ion. Give example? Question 4 What are trivalent ion. Give example? Question 5 What do you mean by chemical formulae of a compound? Question 6 What are the steps to write chemical formulae of a compound? Question 7 What is gram atomic … [Read more...] about Valency of ion