Question

What does it means to say a physical quantity is quantized .the quantum of charge is

elementary charge, is there any quantum of mass found?​

Answer 1

Answer:

All known elementary particles, including quarks, have charges that are integer multiples of 13 e. Therefore, one can say that the "quantum of charge" is 13 e. ... In this case, "elementary charge" would be synonymous with the "quantum of charge". In fact, both terminologies are used.