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The contribution of J. J. Thomson was the discovery of _________. protons electrons positrons nuclei
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Asked 2/15/2016 8:38:36 AM
Updated 2/15/2016 9:10:41 AM
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User: The contribution of J. J. Thomson was the discovery of _________. protons electrons positrons nuclei

Weegy: An atom is made up of B. electrons, protons, neutron.
Andrew.|Points 60965|

User: What did J. J. Thomson discover? protons electrons positrons nuclei

Weegy: An atom is made up of B. electrons, protons, neutron.
Andrew.|Points 60965|

User: A cathode ray is a beam of .

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Asked 2/15/2016 8:38:36 AM
Updated 2/15/2016 9:10:41 AM
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The contribution of J. J. Thomson was the discovery of electrons.
Added 2/15/2016 9:10:40 AM
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