The ' big bang' theory.

This morning I have been giving a little consideration to the ' big bang' theory and what Einstein ( clever bloke) , lemaitre, and Hubble had to say about it all. That took me into the realms of atoms so, I thought I would include a blip of my atom- isn't he cute and he even demonstrates that "all matter is changeable" because he bounces around all over the place. Well, it's just blown my mind - ha ha. Any views on atomic or subatomic principles gratefully received.