Grams 36 Download free eBooks at bookboon.com Fundamentals of Chemistry Electron Configuration Bonding Redox equations 6.1 Valence Electrons and Bonding Electrons can either be core electrons or valence electrons. The oppositely-charged cations and anions. Remember that ionic structures are found in unlikely places,' said Gildor. 'Be of good manners. And yet I am afraid I invariably for- get.