How do we know that most of an atom is empty space? And since that is so, why can’t we just walk through solid objects?

Question

How do we know that most of an atom is empty space? And since that is so, why can’t we just walk through solid objects?

In: 13

Answer 1

Think of it like a net. A net is mostly empty space it we can’t walk through it. There are bonds on energy holding all the atoms together. It takes some amount of energy to break those bonds like it does to break the net.