I don't understand the answer to 3ii. It says suggest why f is n endothermic process and the answer is because the negative s- ion repels the added electron which I don't understand. Can someone explain this to me please?
I dont understand the answer to a question watch
- Thread Starter
- 17-09-2016 18:15
- 17-09-2016 18:17
Energy is needed to overcome this replusion
- 17-09-2016 18:22
you're adding a negative electron to an already negative anion. Therefore there will be repulsion between the electron and the ion and energy must be used to enable this process, making it endothermic