Thomson's model of atom — task. Science CBSE, Class 9 New.

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Read and Answer the Following Questions

Explain how the discovery of cathode rays helped J.J. Thomson propose his model of the atom.

i. Cathode ray experiments showed the presence of

negatively charged electrons
protons inside the nucleus
positively charged particles
neutral particles

ii. Based on cathode ray observations, Thomson suggested that

atoms contain negatively charged electrons embedded in a sphere of positive charge
all positive charge is at the center
atoms contain a dense nucleus
atoms are indivisible

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