How small can energy or matter get in our universe? is there a limit to size

[slickinfinit]

if a atom exponentialy retracted in size is there a point at which it will cease to be? Or is there a mathematicaly logical theory which u can postulate our space being +(positive) and something beyond our laws of physics in relative to its size being -(negetive) space, sice some theorize our space to be infinit then negetive sapce would be finite meaning it doesnt exist? help me out plz I lack a basic degree in physics but i will try to understand what is being said even if I have to learn more math