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The Universe was never smaller than an atom.
A proton is smaller than a molecule, which is a group of atoms bonded together. The nucleus is smaller than both a molecule and an atom, as it is the central part of an atom where most of its mass is concentrated.
Smaller
An atom is smaller than a cell, and a molecule is smaller than both atoms and cells. Cells are composed of molecules, which in turn are made up of atoms.
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The Universe was never smaller than an atom.
it can get smaller than an atom
An atom is smaller than a compound because if an electron fits in an atom, and an atom is a part of a compound, it means a compound is bigger than an atom
A proton is smaller than a molecule, which is a group of atoms bonded together. The nucleus is smaller than both a molecule and an atom, as it is the central part of an atom where most of its mass is concentrated.
There are a few substances smaller than the atom, they're called sub-atomic particles and include things like protons, neutrons, electrons, photons, quarks etc.
Smaller
smaller
Because they are much smaller than an atom
Smaller
An atom is smaller than a cell, and a molecule is smaller than both atoms and cells. Cells are composed of molecules, which in turn are made up of atoms.
Neutrons, protons, and electrons make up an atom, so they are smaller.