8
Photon is a massless particle of electromagnetic energy.
Added 10/14/2018 8:03:05 AM
This answer has been confirmed as correct and helpful.
5
Neutrino is a massless particle of electromagnetic energy.
Added 10/14/2018 7:08:37 AM
This answer has been flagged as incorrect.
Flagged by
Sting [10/14/2018 8:01:41 AM]