Question

Write a brief note on electrons.
[3 Marks]

Answer 1

$\bullet$ Electron is a negatively charged sub-atomic particle and is denoted by the symbol ‘$e^{-}$’.
[1 Mark]

$\bullet$ The charge of an electron is '-1'. [1 Mark]

$\bullet$ The mass of an electron is considered to be negligible as it is 2000 times less than that of a proton.
[1 Mark]