| Atoms
Can
you see a single atom? Learn the general properties of the
atom here.
Introduction
In ancient
Greek philosophy the word "atom" was used to describe
the smallest bit of matter. There are 3 main subatomic particles
that make up an atom. They are electrons, protons, and neutrons.
The electron was the first to be discovered.
Electron
The
electron was by a British scientist named J.J Thompson. An
electron is a tiny particle that moves around the nucleus
of an atom. Electrons carry negative electric charge. The
discovery of the electron made scientist have a new ambition,
to find out what other particles were there. During this search,
they discovered the proton. A proton carries positive charge.
While searching for the proton they discovered the nucleus.
The nucleus accounts for almost all of an atom's mass.
Subnuclear
A subnuclear particle is a neutron protons and neutrons make
up the nucleus.
Oxygen
The oxygen we breath is made up of atoms. Oxygen is made up
of 8 protons and 8 electrons, and atoms.
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