## Physics: Principles with Applications (7th Edition)

The characteristics of each are listed below. Photon: It has both wave properties, and particle properties. It has a wavelength and can be scattered. It is not charged. It has no mass. It does not obey the Pauli exclusion principle. Always travels at the speed of light. Electron: It has both wave properties, and particle properties. It has a wavelength and can be scattered. It has a charge of $-1.602 \times 10^{-19} C$. It has a mass of $9.11 \times 10^{-31} kg$. It obeys the Pauli exclusion principle. It travels at speeds strictly less than the speed of light.