Ionic Compounds And Naming Practice Worksheets - Learny Kids Writing formulas ionic compounds chem worksheet 8 3 answer key. The first box is the intersection between the zinc cation and the chloride anion so you should write zncl 2 as shown. 6.1 Electronegativity, bond polarity, type of chemical bonding. 6.2 More on ionic structures and ionic bonding (Working out electron configurations for atoms and ions) 6.3 More on covalent bonding - single, double & triple bond length & strength, dative bonds. 6.4 Types of Crystal Structure and their relative physical properties