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Lakhmir Singh & Manjit Kaur - Chemistry

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Q. 383.8( 18 Votes )

State two observa

Class 9th Lakhmir Singh & Manjit Kaur - Chemistry 4. Structure of Atom

Answer :

The two observations which shows that atom is not indivisible are:

1) the stream of cathode rays in the gas discharge tube shows the presence of negatively charged subatomic particles called electrons from the J.J. Thomson's experiment.

2) the faint red glow in the gas discharge tube shows the presence of positively charged subatomic particles called protons this is known from Goldstein's experiment.

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