‘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?’
Tickets for this summer’s soccer World Cup are the most expensive in the tournament’s history. Or the history of any sporting event for that matter, with…
