‘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?’
Given that almost 1.7 billion litres of beer were poured in British venues in the past year, you’d think we’d be able to keep the country’s biggest beer festival afloat. It is therefore sad to hear that the Great British Beer Festival will be taken off tap next year, its organisers claiming it can no