Atomic and nuclear

Modules
	Alpha particle (Helium-4 nucleus)
	Bohr radius
	Compton Wavelength
	Deuteron (Deuterium/Hydrogen-2 nucleus)
	Electron particle
	Fermi coupling constant
	Fine-structure constant
	Hartree energy
	Helion (Helium-3 nucleus)
	Muon particle
	Neutron particle
	Proton particle
	Quantum of circulation
	Rydberg constant
	Tau particle
	Thomson cross section
	Triton (Tritium/Hydrogen-3 nucleus)
	Weak mixing angle

Detailed Description