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Atomic Theory

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Across
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This scientist discovered the electron
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This scientist was the first the first to postulate an atom using experimentation
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This person discovered the Neutron
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The heavy mass at center of an atom
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The first model of an atom was thought to look like a ____________
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The ________ model looks like the solar system.
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A positively charged particle
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The ___________ ray experiment was performed by Thomson
Down
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A negatively charged particle
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The first person the theorize the existence of an atom
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A neutral particle in the nucleus of an atom
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This person proved the existance of Protons
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Thomson proposed the _____ pudding model for an atom
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Little ___ peep