Could God make Himself as small as an atom?

I don't. And you shouldn't fabricate things about people. You should know better than that. /facepalm

Why do you do this to people? Do you treat people like this in real life too?

It depends how you view the world. Those old mental exercises of "could God make a rock so heavy that even he could not move it?" are timeless. I think they are fundamentally flawed though, because they originate from humans, who by their very nature are extremely limited and they think in limited terms and they impose (even if not consciously aware of it) limits on God in order to relate to Him. Anthropomorphizing God does not help to answer questions like that.

If you take all a human being can see, can hear, can feel, can detect...it is the merest sliver of information compared to what is out there in creation. We, as human beings, are grossly handicapped when it comes to understanding the nature of creation. Look for example at time...what is time? Is it merely the voids between the occurrences of two events? Is it something more? Is it even real? Being a creation of God, wouldn't that mean, by default, that God is Himself beyond time and by extension, beyond our understanding of time? We exist in 4-dimensional space-time (if you accept that and don't jump ahead immediately to more esoteric modern theories), but just as a higher-dimensional entity can detect and interact with lower dimensions (you can read a book which is 2-dimensional, you can deal mathematically with 1-dimensional entities and constructs), does that not mean by extension that God is a higher-dimensional being? If He created the dimensions we are in, he has to be on a level higher than we are. How high? I don't know. My brain turns to oatmeal past the 5th dimension when I try thinking about it.

God is the creator of both time and space. He both in time and space and outside of time and space, at the same time. (Try this on your 6 year old!) I don't think size is ever an issue with God.

Do I treat people like reasonable adults in real life until they prove they aren't? Yup.

You aren't. Nuff said.

I do not believe God has to create time and space,for time is going to naturally happen,and is a wearing down of the physical world,that will happen anyway,and a marking tool that people use,and God uses it as a marking tool,but He did not have to create time,more like He established time,and space has always been,for God is an omnipresent Spirit that fills all space,and God does not have a beginning,so space does not have a beginning,how can God create space,when He fills all space,and He always exists,and space has no substance on its own to be created.

Time and space are not actual substances to be created,but He established time,and God fills all space,and God always exists,so space always exists,is it space,or is it God who is never ending,for we are in God,and have our movement and being because of Him.