Chadwick discovered a third type of sub-atomic particle which he named the neutron.
Neutrons
help stabilize the protons
in the atom's nucleus. Because the nucleus
is so tightly packed together, the positively charged protons
tend to repel each other, most times. Neutrons
help to reduce the repulsion between protons
and stabilize the atom's nucleus.
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Below is the model of the atom that Chadwick came up with.
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Chadwick's model states that electrons have no definite
path in an atom. The most likely location of an electron is found on how much energy it has. The more energy
an electron has, the farther from the nucleus. The small, positively charged nucleus is surrounded by a large space in which
there are enough negative charged electrons to make the atom neutral.
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