25.4: Properties of Stable Particles
- Page ID
- 32912
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\begin{array}{lcl}
\text { Symbol } & \text { Value } & \text { Meaning } \\
e & 1.60 \times 10^{-19} \mathrm{C} & \text { fundamental unit of charge } \\
m_{e} & 9.11 \times 10^{-31} \mathrm{~kg}=0.511 \mathrm{MeV} & \text { mass of electron } \\
m_{p} & 1.672648 \times 10^{-27} \mathrm{~kg}=938.280 \mathrm{MeV} & \text { mass of proton } \\
m_{n} & 1.674954 \times 10^{-27} \mathrm{~kg}=939.573 \mathrm{MeV} & \text { mass of neutron }
\end{array}
\end{equation}\]