Stoichiometry 0.0 / 5 ? ScienceStoichiometryThe moleIGCSECIE Created by: AIV17Created on: 01-05-21 06:36 How do you find the formula of a compound? Find the valencies then swap them. Simplify them if necessary 1 of 7 How do you write an ionic group that cannot be changed? In brackets 2 of 7 What is the valency of elements in Group I-IV? It is equal to the group number 3 of 7 What is the valency of elements in Group V-VII? 8 - group number 4 of 7 What is the valency of elements in Group VIII/0? 0 5 of 7 What do the numbers in a formula represent? The no of atoms of each element in a molecule of the compound 6 of 7 How can the formula of an ionic compound be found? By the charge on the ions. Multiply each ion until the sum of charges is 0 7 of 7
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