An Atom contains both Protons & Electrons, and sometimes even Neutrons. An Electron is about 1/1840th the mass of a Proton or a Neutron, so Atoms are definitely much heavier.
Atom
Smallest to Largest.. - Electron - Proton - Atom - Compound - Molecule
Its atom: aluminium is an element.
An electron is not the largest part of an atom. An electron is the smallest component of an atom. Relatively, if a neutron or proton were 1 unit in size, an electron would be 1/1840 units in size.
least - electron most - the top quark
A single atom of hydrogen-1 is the smallest particle of hydrogen. A hydrogen-1 atom contains only one proton and one electron, and is the simplest atom.
electron is the smallest
In the atom the electron is the smallest.
Hydrogen is the smallest atom by mass. Helium, neon, fluorine and oxygen are smaller in size. Many calculations put the helium as the smallest atom. But a few other calculations put neon as the smallest atom!
an electron
Electron
The smallest particle in the atom is the electron.
You probably mean the smallest part of an atom. That would be an electron, because electrons are the particles making up atoms that are smallest in size.
electron
Electron
The electron is the smallest component.
The smallest atom is hydrogen.
an atom is larger than an electron