Difference Between Cathode Rays And Positive Rays

Difference between cathode rays and positive rays

SN	Cathode Rays	Positive Rays
1.	Cathode rays are made of negatively charged particles (electrons).	Positive rays are made of positively charged particles.
2.	The charge is equal to the electron charge.	The value of charge on them is an integral multiple of electron charge.
3.	Their velocity is much higher.	Being heavy, their velocity is less.
4.	Mass is less i.e. equal to electron mass.	Mass is more and is equal to the atomic weight of the gas present in the discharge tube.
5.	Kinetic energy is less.	Kinetic energy is more.
6.	Specific charge (e/m) is more and it is a universal constant.	Specific charge (q/m) is less and not a universal constant.
7.	Cathode rays were discovered by JJ Thomson.	Positive rays were discovered by Goldstein.
8.	Their ionizing power is less.	Their ionizing power is more.
9.	Their penetrating power is more.	Their penetrating power is less.

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