‘WHAT? By giving up its lone outer electron, a sodium atom achieves a desirable quantum mechanical configuration and is left with a positive charge. By accepting an extra electron, chlorine fills its eight electrons and gains a negative charge. The charged ions are then held together to make molecules and crystals of common salt (NaCl) by electrostatic forces… Lassie, are you absolutely sure that’s what the professor told you?’
You know that urge when you’ve got friends coming for the weekend and you just have to spend the previous week putting together all the essentials for a successful stay: personalised bags of truffle-flavoured popcorn and pretzel nibbles for their bedside; hand-blended, sensually curated bath salts; layer cake flavoured with honey from your private hives;