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

Published by Pearson

# Chapter 27 - Early Quantum Theory and Models of the Atom - Questions: 16

#### Answer

-Both have wave and particle properties -Photons are not charged while electrons have a negative charge -Photons have no mass while electrons have mass -Electrons must obey the Pauli exclusion principle while Photons do not -Photons travel at the speed of light while electrons must always travel under this speed

#### Work Step by Step

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.

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