abundance_earths_crust=ppm
abundance_human=ppb
abundance_sun=ppm
abundance_universe=ppm
atomic_mass=u
brinell_hardness=MPa
bulk_modulus=GPa
critical_material=%
curie_temperature=K
density=g/cm³
electrical_conductivity=µS/m
electrical_resistivity=Ω.m
electronegativity=
enthalphy_of_fusion=kJ/mol
enthalphy_of_vapourisation=kJ/mol
heat_capacity=J/mol.K
magnetic_susceptibility=
poissons_ratio=
radius=pm
shear_modulus=GPa
speed_of_sound=m/s
temperature=K
thermal_conductivity=W/m.K
thermal_expansion=µm/m.K
valence_electronPotential=
vickers_hardness=MPa
youngs_modulus=Pa