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Atomic Theory

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