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Atoms
Atoms are composed of protons, neutrons, and electrons.
He discovered that the atom contained smaller particles called electrons.
These particles are: proton, neutron, electron.
at the moment, the smallest thing in the universe known to man is the neutrino, with a mass of less than 0. this is the opposite of an electron. electrons are one of the three main things that make up atoms.
Protons and neutrons are composed from quarks and gluons.
It is believed that many particles are made of even smaller particles. By smashing protons against each other at high speed scientists hope to find what smaller particles they are made of.
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Neutrinos are considered to be elementary particles without any internal structure (i.e., they are not believed to be composed of yet smaller and more elementary particles.)
The value in "banging particles together at high speed" is that, when you do so, the larger particles can break up and show scientists what is inside. When this happens, scientists are able to find smaller and smaller particles so that they can understand better what the most basic particles in the universe are. In doing so, scientists are slowly getting closer to finding out how the universe began and what may have caused its creation.
Atoms
Atoms are composed of protons, neutrons, and electrons.
It is the smallest length scientists have discovered. Anything smaller makes "no physical sense"
He discovered that the atom contained smaller particles called electrons.
He discovered that the atom contained smaller particles called electrons.
He discovered that the atom contained smaller particles called electrons.
John Dalton believed that atoms were the fundamental building blocks of matter, and that they could not be created, destroyed or split. However he was wrong, because atoms are made out of subatomic particles such as Protons, Neutrons and Electrons - and later still, it was discovered Protons and Neutrons too are made of even smaller particles.