Question

The transfer of an integral number of __________ is one of the evidence of quantization of electric charge.
Fill in the blank with the correct answer from the options given below.

• A. photons
• B. nuclei
• C. electrons
• D. neutrons

Answer 1

The Correct Option is C

The concept of quantization of electric charge refers to the idea that charge comes in discrete amounts, which means it can be measured in integral multiples of a fundamental unit. This fundamental unit of charge is the charge of an electron, denoted as \( e \). Electrons carry a negative charge of approximately \( 1.6 \times 10^{-19} \) coulombs. The quantization implies that any electric charge \( Q \) must be an integer multiple of the electron's charge: \( Q = n \times e \), where \( n \) is an integer. Thus, the transfer of an integral number of electrons is evidence of the quantization of electric charge. This principle underlies many phenomena in electric and electronic systems, as well as the foundational theories of atomic structure.