Discussions tagged with 'Photons' Kasim Do Photons Have Mass? Steffen replied 3 years, 3 months ago 6 Members · 13 Replies The Particle Model David The Particle Model does not have a Photon Kasim replied 3 years, 5 months ago 2 Members · 1 Reply The Particle Model Viewing 1 - 2 of 2 discussions