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I'm not exactly sure but it's probably: electrons, neutrons, and protons.
The electron is the smallest particle of the atom, in the traditional sense. However, the neutrino is far smaller than the electron, and is thus the smallest particle. You could also argue that the photon, with zero rest mass, is actually the smallest, but that's a quantum mechanics question that seems to be beyond the scope of this question.
What else can I help you with?
What is the smallest particle a substance?
An atom is the smallest particle of a substance.
What is the smallest particle of the element iron that can still be classified as iron?
An iron atom is the smallest iron particle that still has the properties of iron.
What is the smallest particle chemistry element?
The smallest particle of an element in chemistry is an atom. Atoms are made up of protons, neutrons, and electrons.
What is called the smallest particle of an element that still retains the characteristics of that element?
This particle is the atom.
What is the name of the smallest particle of matter?
A quark is the smallest particle in matter.
The smallest particle of an element is called?
The smallest particle of an element is called an atom.
Is proton the smallest particle in a chemical element atom?
The smallest particle in the atom is the electron.
What is the smallest particle a substance?
An atom is the smallest particle of a substance.
What in an atom?
An atom is a particle, the smallest particle that can exist by itself.
What is the smallest particle of the element iron that can still be classified as iron?
An iron atom is the smallest iron particle that still has the properties of iron.
Is for all elements the smallest particle that can exist independently is an atom?
No, for all elements the smallest particle that can exist independently is an atom.
How do you explain an atom?
atom is the smallest particle of matter
Which is the smallest particle of matter?
An atom
What the smallest particle of a atom?
Electron
What is the smallest divisible particle?
the atom
What is smallest particle of a element is referred to as?
This particle is called atom.
What is the smallest particle that an atom can be broken into?
A Higgs-Boson particle.
