| Abundances of the elements | helium |
| Abundance in carbonaceous meteorites (by weight) | helium |
| Abundance in carbonaceous meteorites (by atoms) | helium |
| Abundance in Earth's crust (by weight) | helium |
| Abundance in Earth's crust (by atoms) | helium |
| Abundance in iron meteorites (by weight) | helium |
| Abundance in iron meteorites (by atoms) | helium |
| Abundance in oceans (by weight) | helium |
| Abundance in oceans (by atoms) | helium |
| Abundance in stream water (by weight) | helium |
| Abundance in stream water (by atoms) | helium |
| Abundance in the sun (by weight) | helium |
| Abundance in the sun (by atoms) | helium |
| Abundance in the universe (by weight) | helium |
| Abundance in the universe (by atoms) | helium |
| Abundances in humans (by weight) | helium |
| Abundances in humans (by atoms) | helium |
| Atomic radii (Clementi) | helium |
| Atomc radii (calculated) | helium |
| Atomic radius (empirical) | helium |
| Atomic number | helium |
| Atomic spectra | helium |
| Biology | helium |
| Block in periodic table | helium |
| Boiling point | helium |
| Boiling point of highest fluoride | helium |
| Boiling point of hydride | helium |
| Bond enthalpy (single bond) | helium |
| Bond enthalpy of diatomic M-Al molecules | helium |
| Bond enthalpy of diatomic M-Ar molecules | helium |
| Bond enthalpy of diatomic M-As molecules | helium |
| Bond enthalpy of diatomic M-B molecules | helium |
| Bond enthalpy of diatomic M-Ba molecules | helium |
| Bond enthalpy of diatomic M-Be molecules | helium |
| Bond enthalpy of diatomic M-Bi molecules | helium |
| Bond enthalpy of diatomic M-Br molecules | helium |
| Bond enthalpy of diatomic M-C molecules | helium |
| Bond enthalpy of diatomic M-Ca molecules | helium |
| Bond enthalpy of diatomic M-Cl molecules | helium |
| Bond enthalpy of diatomic M-Cs molecules | helium |
| Bond enthalpy of diatomic M-F molecules | helium |
| Bond enthalpy of diatomic M-Fr molecules | helium |
| Bond enthalpy of diatomic M-Ga molecules | helium |
| Bond enthalpy of diatomic M-Ge molecules | helium |
| Bond enthalpy of diatomic M-H molecules | helium |
| Bond enthalpy of diatomic M-He molecules | helium |
| Bond enthalpy of diatomic M-I molecules | helium |
| Bond enthalpy of diatomic M-In molecules | helium |
| Bond enthalpy of diatomic M-K molecules | helium |
| Bond enthalpy of diatomic M-Kr molecules | helium |
| Bond enthalpy of diatomic M-Li molecules | helium |
| Bond enthalpy of diatomic M-Mg molecules | helium |
| Bond enthalpy of diatomic M-N molecules | helium |
| Bond enthalpy of diatomic M-Na molecules | helium |
| Bond enthalpy of diatomic M-Ne molecules | helium |
| Bond enthalpy of diatomic M-O molecules | helium |
| Bond enthalpy of diatomic M-P molecules | helium |
| Bond enthalpy of diatomic M-Pb molecules | helium |
| Bond enthalpy of diatomic M-Ra molecules | helium |
| Bond enthalpy of diatomic M-Rb molecules | helium |
| Bond enthalpy of diatomic M-Rn molecules | helium |
| Bond enthalpy of diatomic M-S molecules | helium |
| Bond enthalpy of diatomic M-Sb molecules | helium |
| Bond enthalpy of diatomic M-Se molecules | helium |
| Bond enthalpy of diatomic M-Si molecules | helium |
| Bond enthalpy of diatomic M-Sn molecules | helium |
| Bond enthalpy of diatomic M-Sr molecules | helium |
| Bond enthalpy of diatomic M-Te molecules | helium |
| Bond enthalpy of diatomic M-Tl molecules | helium |
| Bond enthalpy of diatomic M-Xe molecules | helium |
| Bond enthalpy of diatomic molecules | helium |
| Bond enthalpy of homodinuclear molecules | helium |
| Bond length in element | helium |
| Bulk modulus | helium |
| CAS Registry number | helium |
| Chemistry | helium |
| Classification | helium |
| Colour | helium |
| Common oxidation numbers | helium |
| compounds | helium |
| contents | helium |
| Covalent radius | helium |
| covalent radii revisited (2008 values) | helium |
| Covalent radii (molecular single bond) | helium |
| Covalent radii (molecular double bond) | helium |
| Covalent radii (molecular triple bond) | helium |
| Critical temperature | helium |
| Crystal structure | helium |
| Density of solid | helium |
| Description | helium |
| Discovery | helium |
| Discovery | helium |
| Discovery | helium |
| Effective nuclear charge (Clementi) | helium |
| Effective nuclear charge (Clementi) - 1s | helium |
| Effective nuclear charge (Clementi) - 2p | helium |
| Effective nuclear charge (Clementi) - 2s | helium |
| Effective nuclear charge (Clementi) - 3d | helium |
| Effective nuclear charge (Clementi) - 3p | helium |
| Effective nuclear charge (Clementi) - 3s | helium |
| Effective nuclear charge (Clementi) - 4d | helium |
| Effective nuclear charge (Clementi) - 4f | helium |
| Effective nuclear charge (Clementi) - 4p | helium |
| Effective nuclear charge (Clementi) - 4s | helium |
| Effective nuclear charge (Clementi) - 5d | helium |
| Effective nuclear charge (Clementi) - 5p | helium |
| Effective nuclear charge (Clementi) - 5s | helium |
| Effective nuclear charge (Clementi) - 6p | helium |
| Effective nuclear charge (Clementi) - 6s | helium |
| Electrical resistivity | helium |
| Electron affinity | helium |
| Electron binding energies | helium |
| Electron binding energies (K) | helium |
| Electron binding energies (L-I) | helium |
| Electron binding energies (L-II) | helium |
| Electron binding energies (L-III) | helium |
| Electron binding energies (M-I) | helium |
| Electron binding energies (M-II) | helium |
| Electron binding energies (M-III) | helium |
| Electron binding energies (M-IV) | helium |
| Electron binding energies (M-V) | helium |
| Electron binding energies (N-I) | helium |
| Electron binding energies (N-II) | helium |
| Electron binding energies (N-III) | helium |
| Electron binding energies (N-IV) | helium |
| Electron binding energies (N-V) | helium |
| Electron binding energies (N-VI) | helium |
| Electron binding energies (N-VII) | helium |
| Electron binding energies (O-I) | helium |
| Electron binding energies (O-II) | helium |
| Electron binding energies (O-III) | helium |
| Electron binding energies (O-IV) | helium |
| Electron binding energies (O-V) | helium |
| Electron binding energies (P-I) | helium |
| Electron binding energies (P-II) | helium |
| Electron binding energies (P-III) | helium |
| Electron shell structure | helium |
| electronegativity | helium |
| Electronegativity (Allen) | helium |
| Electronegativity (Allred-Rochow) | helium |
| Electronegativity (Mulliken-Jaffe - s) | helium |
| Electronegativity (Mulliken-Jaffe - sp) | helium |
| Electronegativity (Mulliken-Jaffe -sp2) | helium |
| Electronegativity (Mulliken-Jaffe -sp3) | helium |
| Electronegativity (Mulliken-Jaffe) | helium |
| Electronegativity (Mulliken-Jaffe) p-orbital | helium |
| Electronegativity (Pauling) | helium |
| Electronegativity (Sanderson) | helium |
| Electronic configuration | helium |
| Element names and symbols | helium |
| Element popularity | helium |
| Enthalpy of atomization | helium |
| Enthalpy of fusion | helium |
| Enthalpy of vaporization | helium |
| Geology | helium |
| Group Name | helium |
| Group numbers | helium |
| Hardness - Brinell | helium |
| Hardness - Mineralogical | helium |
| Hardness - Vickers | helium |
| Health hazards | helium |
| History of the element | helium |
| Hydration enthalpy for metal ion M[I] | helium |
| Hydration enthalpy for metal ion M[II] | helium |
| Hydration enthalpy for metal ion M[III] | helium |
| Hydration enthalpy for metal ion M[IV] | helium |
| Hydrolysis constant of hydrated metal ion M(I) | helium |
| Hydrolysis constant of hydrated metal ion M(II) | helium |
| Hydrolysis constant of hydrated metal ion M(III) | helium |
| Hydrolysis constant of hydrated metal ion M(IV) | helium |
| Ionic radii (Shannon) | helium |
| Ionic radii (Shannon) for 8-coordinate M(-I) ion | helium |
| Ionic radii (Shannon) for 8-coordinate M(-II) ion | helium |
| Ionic radii (Shannon) for 8-coordinate M(I) ion | helium |
| Ionic radii (Shannon) for 8-coordinate M(II) ion | helium |
| Ionic radii (Shannon) for 8-coordinate M(III) ion | helium |
| Ionic radii (Shannon) for 8-coordinate M(IV) ion | helium |
| Ionic radii (Shannon) for 8-coordinate M(V) ion | helium |
| Ionic radii (Shannon) for 8-coordinate M(VI) ion | helium |
| Ionic radii (Shannon) for octahedral M(-III) ion | helium |
| Ionic radii (Shannon) for octahedral M(-II) ion | helium |
| Ionic radii (Shannon) for octahedral M(-I) ion | helium |
| Ionic radii (Shannon) for octahedral M(I) ion | helium |
| Ionic radii (Shannon): low spin octahedral M(II) ion | helium |
| Ionic radii (Shannon): high spin octahedral M(II) ion | helium |
| Ionic radii (Shannon): low spin octahedral M(III) ion | helium |
| Ionic radii (Shannon): high spin octahedral M(III) ion | helium |
| Ionic radii (Shannon): low spin octahedral M(IV) ion | helium |
| Ionic radii (Shannon): high spin octahedral M(IV) ion | helium |
| Ionic radii (Shannon) for octahedral M(V) ion | helium |
| Ionic radii (Shannon) for octahedral M(VI) ion | helium |
| Ionic radii (Shannon) for octahedral M(VII) ion | helium |
| Ionic radii (Shannon) for octahedral M(VIII) ion | helium |
| Ionic radii (Shannon) for square planar M(I) ion | helium |
| Ionic radii (Shannon) for square planar M(II) ion | helium |
| Ionic radii (Shannon) for square planar M(III) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(-III) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(-I) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(-II) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(I) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(II) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(III) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(IV) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(V) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(VI) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(VII) ion | helium |
| Ionic radii (Shannon) for tetrahedral M(VIII) ion | helium |
| Ionic radius (Pauling) | helium |
| Ionic radius (Pauling) for M(-IV) ion | helium |
| Ionic radius (Pauling) for M(-III) ion | helium |
| Ionic radius (Pauling) for M(-II) ion | helium |
| Ionic radius (Pauling) for M(-I) ion | helium |
| Ionic radius (Pauling) for M(I) ion | helium |
| Ionic radius (Pauling) for M(II) ion | helium |
| Ionic radius (Pauling) for M(III) ion | helium |
| Ionic radius (Pauling) for M(IV) ion | helium |
| Ionic radius (Pauling) for M(V) ion | helium |
| Ionic radius (Pauling) for M(VI) ion | helium |
| Ionic radius (Pauling) for M(VII) ion | helium |
| Ionization energies | helium |
| Ionization energy: 1st | helium |
| Ionization energy: 2nd | helium |
| Ionization energy: 3rd | helium |
| Ionization energy: 4th | helium |
| Ionization energy: 5th | helium |
| Ionization energy: 6th | helium |
| Ionization energy: 7th | helium |
| Ionization energy: 8th | helium |
| Ionization energy: 9th | helium |
| Ionization energy: 10th | helium |
| Ionization energy: 11th | helium |
| Ionization energy: 12th | helium |
| Ionization energy: 13th | helium |
| Ionization energy: 14th | helium |
| Ionization energy: 15th | helium |
| Ionization energy: 16th | helium |
| Ionization energy: 17th | helium |
| Ionization energy: 18th | helium |
| Ionization energy: 19th | helium |
| Ionization energy: 20th | helium |
| Ionization energy: 21st | helium |
| Isolation | helium |
| Isotopes | helium |
| Lattice energies | helium |
| Lattice energies (calculated) for MH | helium |
| Lattice energies (calculated) for MH2 | helium |
| Lattice energies (calculated) for MH3 | helium |
| Lattice energies (calculated) for MH4 | helium |
| Lattice energies (calculated) for MF | helium |
| Lattice energies (calculated) for MF2 | helium |
| Lattice energies (calculated) for MF3 | helium |
| Lattice energies (calculated) for MF4 | helium |
| Lattice energies (calculated) for MCl | helium |
| Lattice energies (calculated) for MCl2 | helium |
| Lattice energies (calculated) for MCl3 | helium |
| Lattice energies (calculated) for MCl4 | helium |
| Lattice energies (calculated) for MBr | helium |
| Lattice energies (calculated) for MBr2 | helium |
| Lattice energies (calculated) for MBr3 | helium |
| Lattice energies (calculated) for MBr4 | helium |
| Lattice energies (calculated) for MI | helium |
| Lattice energies (calculated) for MI2 | helium |
| Lattice energies (calculated) for MI3 | helium |
| Lattice energies (calculated) for MI4 | helium |
| Lattice energies (calculated) for M2O | helium |
| Lattice energies (calculated) for MO | helium |
| Lattice energies (calculated) for M2O2 | helium |
| Lattice energies (calculated) for M2O3 | helium |
| Lattice energies (calculated) for MO2 | helium |
| Lattice energies (calculated) for MO3 | helium |
| Lattice energies (thermochemical cycle) for MH | helium |
| Lattice energies (thermochemical cycle) for MH2 | helium |
| Lattice energies (thermochemical cycle) for MH3 | helium |
| Lattice energies (thermochemical cycle) for MH4 | helium |
| Lattice energies (thermochemical cycle) for MF | helium |
| Lattice energies (thermochemical cycle) for MF2 | helium |
| Lattice energies (thermochemical cycle) for MF3 | helium |
| Lattice energies (thermochemical cycle) for MF4 | helium |
| Lattice energies (thermochemical cycle) for MCl | helium |
| Lattice energies (thermochemical cycle) for MCl2 | helium |
| Lattice energies (thermochemical cycle) for MCl3 | helium |
| Lattice energies (thermochemical cycle) for MCl4 | helium |
| Lattice energies (thermochemical cycle) for MBr | helium |
| Lattice energies (thermochemical cycle) for MBr2 | helium |
| Lattice energies (thermochemical cycle) for MBr3 | helium |
| Lattice energies (thermochemical cycle) for MBr4 | helium |
| Lattice energies (thermochemical cycle) for MI | helium |
| Lattice energies (thermochemical cycle) for MI2 | helium |
| Lattice energies (thermochemical cycle) for MI3 | helium |
| Lattice energies (thermochemical cycle) for MI4 | helium |
| Lattice energies (thermochemical cycle) for M2O | helium |
| Lattice energies (thermochemical cycle) for MO | helium |
| Lattice energies (thermochemical cycle) for M2O2 | helium |
| Lattice energies (thermochemical cycle) for M2O3 | helium |
| Lattice energies (thermochemical cycle) for MO2 | helium |
| Lattice energies (thermochemical cycle) for MO3 | helium |
| Linear expansion coefficient | helium |
| Liquid Range | helium |
| Meaning of name | helium |
| Melting point | helium |
| Melting point of the highest fluoride | helium |
| Melting point of the hydride | helium |
| Menu to displays of periodic properties | helium |
| Molar volume | helium |
| NMR data | helium |
| Orbital properties | helium |
| Period numbers | helium |
| Poisson's ratio | helium |
| Properties of some compounds | helium |
| Radius - metallic (12) | helium |
| Reactions of the elements | helium |
| Reduction potential of hydrated M(I) ions | helium |
| Reduction potential of hydrated M(II) ions | helium |
| Reduction potential of hydrated M(III) ions | helium |
| Reduction potential of hydrated M(IV) ions | helium |
| Reflectivity | helium |
| Refractive index | helium |
| Rigidity modulus | helium |
| Single bond enthalpy in highest bromide | helium |
| Single bond enthalpy in highest chloride | helium |
| Single bond enthalpy in highest fluoride | helium |
| Single bond enthalpy in highest iodide | helium |
| Standard atomic weights | helium |
| standard reduction potentials | helium |
| Standard state | helium |
| Superconductivity temperature | helium |
| Term symbol | helium |
| Thermal conductivity | helium |
| thermochemistry | helium |
| Thermodynamic properties | helium |
| Total mass in 70 kg human | helium |
| Uses | helium |
| valence orbital R(max) | helium |
| valence s-orbital R(max) | helium |
| valence p-orbital R(max) | helium |
| valence d-orbital R(max) | helium |
| valence f-orbital R(max) | helium |
| valence s-orbital R(max) | helium |
| valence p-orbital R(max) | helium |
| valence d-orbital R(max) | helium |
| valence f-orbital R(max) | helium |
| Van der Waals radius | helium |
| Velocity of sound | helium |
| X-ray mass absorption coefficients | helium |
| X-ray mass absorption coefficients (Ag-Kα) | helium |
| X-ray mass absorption coefficients (Co-Kα) | helium |
| X-ray mass absorption coefficients (Cr-Kα) | helium |
| X-ray mass absorption coefficients (Cu-Kα) | helium |
| X-ray mass absorption coefficients (Fe-Kα) | helium |
| X-ray mass absorption coefficients (Mo-Kα) | helium |
| X-ray mass absorption coefficients (Ni-Kα) | helium |
| X-ray mass absorption coefficients (W-Lα) | helium |
| Young's modulus | helium |
