1. Photon has absolutely no mass while electron has a definite mass.
2. Photon has no electric charge whereas electron has unit negative charge.
3. Photon has a fixed velocity - velocity of light which is constant. Electron
can be made to travel at various velocities, all less than that of photon.
4. Photon exhibits only the wave form while electron exhibits both WAVE FORM AND MATTER FORM.
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