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Describe Thomson’s model of atom. Which subatomic particle was not present in Thomson’s model of atom ?

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Thomson’s Atomic Model:

• This model is often called the ‘Water Melon Model’. 

• In this model, Thomson predicted the presence of electrons inside positive sphere (made up of protons), just same as seeds of watermelon are embedded in red edible part of watermelon.

J. J. Thomson’s Model of Atom

• Although this model explained neutrality of atom but couldn’t able to explain other scientific experiments conducted on atom. Hence it was discarded.

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