An atom is a fundamental smallest unit of matter which is made up of protons (positive particles), neutral (neutral particles), and electrons(negative particles).
Every matter (solid, gas, liquid, etc.) is made up of atoms.
A cell is a fundamental membrane-bound unit of life that can be single-celled or multicellular.
Cells comprise all the molecules essential for the functioning of organisms.
The size of an atom is 10-10m.
Whereas the size of a cell is 10-6m.
Therefore, cells are larger than atoms, as all cells are made up of atoms.