Drag the following in order, starting with the largest particle (can be seen) on the top and ending with the smallest particle (cannot be seen) on the bottom.
atoms
four carbon atoms
nucleus of an atom
electron

Explanation:

four carbon atoms atoms nucleus of an atomelectron

Atoms are the smallest indivisible particle in any substances. But atoms are also made up of other tiny particles which are subatomic in sizes. These particles are protons, neutrons and electrons.

Protons and neutrons are called the nucleons of an atoms. They are massive particles found in the nucleus of an atom. The nucleus is a very small area but very dense.

Electrons are negatively charged subatomic particles. The bulk of the volume of the atom is occupied by electrons orbiting the nucleus.

Together, the electrons and the nucleons makes up the subatomic particles in an atom.