What is a photon?
A. an electron in an excited state
B. a small packet of electromagnetic energy that has particle-like properties
C. one form of a nucleon, one of the particles that makes up the nucleus
D. an electron that has been made electrically neutral
Answer:B
What is a photon?
A. an electron in an excited state B. a small packet of electromagnetic energy that has particle-like properties C. one form of a nucleon, one of the particles that makes up the nucleus D. an electron that has been made electrically neutral