If the equation is not balanced, you have extra of one substance. If you try to do an experiment, you could wind up with a totally different outcome. Its kind of like baking a cake. If the ingredients aren't the right amounts, you dont get an edible cake.
Answer:
It is the way of cleaning of impurities present in metals
The answer is 4. It can hold 4 sublevels as s.p,d,f and it holds 32 electrons
