The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- ActiniumSymbol (0 members)
- Vacuum (0 members)
- NormalPulseVoltammetry (0 members)
- AlgebricOperator (0 members)
- RestMass (0 members)
- ElectronAffinity (0 members)
- EntropyPerAmountDimension (0 members)
- PulseDuration (0 members)
- BatteryRecycling (0 members)
- NCM622Electrode (0 members)
- RelativeMassDensity (0 members)
- AtomicPhysicsCrossSection (0 members)
- ElectrochemicalRelation (0 members)
- NMC333Cell (0 members)
- DoseEquivalent (0 members)
- NMCElectrode (0 members)
- WaterExtraction (0 members)
- Polarization (0 members)
- UnifiedAtomicMassConstant (0 members)
- Line (0 members)
- MaxPulseDischargeCurrent (0 members)
- EncodedData (0 members)
- ConstantVoltageCharging (0 members)
- RadiumAtom (0 members)
- EntropyDimension (0 members)
- SpecialUnit (0 members)
- MagneticMoment (0 members)
- InsertionMaterial (0 members)
- MeasuredConstant (0 members)
- RoentgeniumAtom (0 members)
- BohrRadius (0 members)
- LithiumMetalElectrode (0 members)
- EffectiveMass (0 members)
- ParticleConcentration (0 members)
- Quantum (0 members)
- ElectricPotentialMeasuringSystem (0 members)
- ScandiumSymbol (0 members)
- SeaborgiumSymbol (0 members)
- StandardVoltageCell (0 members)
- Amperometry (0 members)
- CobaltAtom (0 members)
- LuminanceDimension (0 members)
- MassPerLengthDimension (0 members)
- Displacement (0 members)
- InterphaseGrowth (0 members)
- PorousElectrodeCoating (0 members)
- Enthalpy (0 members)
- LarmonFrequency (0 members)
- DegassedElectrochemicalCell (0 members)
- SolubilityProduct (0 members)