MCQ
Which of the following is the correct statement for an electron
- Aelectron is a particle having a negative charge of one unit and zero atomic mass
- Belectron is a particle having a positive charge of unit and zero atomic mass
- ✓electron is a particle having a negative charge of one unit and a mass of about $9 \times 10^{-28}\, g$
- Delectron is a particle having a negative charge and a mass of about $1.7 \times 10^{-24} \,g$
