Question

Is a atom small or huge? What is used to identify an atom?

Answer 1

Atoms are very small, they are smaller than

anything that we can imagine or compare

with More than millions of atoms when

stacked would make a layer barely as thick

as this sheet of paper.

Atomic radius is measured in nanometres

1/10 m = 1 nm

1 m = 10 nm

It can be only identified using an elctron microscope.