Species Functions
Species functions each take a Species as their parameter and return a specific property. Here are the available functions:
massof(::Species)chargeof(::Species)atomicnumber(::Species)nameof(::Species)kindof(::Species)g_spin(::Species)- $g\_spin = 2 m \mu / S q$ is gyromagnetic ratio with:
 - $m$ is species mass
 - $\mu$ is the species magnetic moment
 - $S$ is the species spin
 - $q$ is the species charge
 
gyromagnetic_anomaly(::Species)- $gyromagnetic\_ anomaly = (g-2)/2$ is the gyromagnetic anomaly with:
 - $g$ is the gyromagnetic ratio
 
g_nucleon(::Species)- $g\_ nucleon = g Z m_p / m$ is the gyromagnetic anomaly for a baryon with:
 - $g$ is the gyromagnetic ratio
 - $Z$ is the species charge
 - $m_p$ is the mass of a proton
 - $m$ is species mass
 
Note: You must call @APCdef before using massof(), chargeof(), or nameof().