half tide

"An atom is so small that it is almost impossible to understand how small a single atom is. It is easier to think about how long a line of 1 million atoms might be. Take a page of a book and hold it between your thumb and forefinger so that you get an idea of how thick the paper is.

"One million atoms lined up in a row would roughly equal the thickness of the page you are holding."

Big Site of Amazing Facts

however, there is nothing smaller that zero, nil, nada, as in england vs. slovenia