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The Development of the Atomic Model (6)
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Chadwick’s Atomic Model (2)
Neutrons contribute almost half of the mass of an atom
The subatomic particles found in the nucleus of nitrogen atom
Proton and neutron
A person who discovered negatively-charged particles called electrons
J.J. Thomson
A person who discovered positively-charged particles called protons in the nucleus
Ernest Rutherford
A person who discovered neutral particles, that are neutrons in the nucleus
James Chadwick
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The Development of the Atomic Model (6)
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