If atoms are 99,9% emptiness, how can they keep things together ? Like, if my skin is 99,9% emptiness, why is it able to keep blood and organs in it ?

Question

If atoms are 99,9% emptiness, how can they keep things together ? Like, if my skin is 99,9% emptiness, why is it able to keep blood and organs in it ?

In: Chemistry

Answer 1

Matter consists of tiny particles that push and pull at each other, just like magnets do. Essentially the universe as humans observe it is all different shades of electromagnetic interactions, which both hold electrons in their hazy orbits around the atomic nucleus while also making different atoms repel each other, thus making matter, well, material.

And this is all accomplished by photons doing their thing, exchanging energy between other particles.