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Chemistry
4. Structure of Atom
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Q54 of 149 Page 193

What conclusion is obtained from the fact that all the gases form cathode rays?

All the atoms contain negatively charged particles called electrons is the conclusion obtained from the fact that all the gases form cathode rays.


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54

What are cathode rays? What is the nature of charge on cathode rays?

54

Explain how, cathode rays are formed from the gas taken in the discharge tube.

55

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

55

The mass number of an element is 18. It contains 7 electrons. What is the number of protons and neutrons in it?

Questions · 149
4. Structure of Atom
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