Chemical elements data references
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Recommended values for many properties of the elements, together with various references, are collected on these data pages. Any changes to the infobox data should be checked against these pages, and/or the available references should be expanded accordingly, so that the decision for or against certain values remains transparent and easily retraceable.

References

• list of elements by atomic mass— atomic mass, atomic number, symbol, name
• electron configurations of the elements (data page) — electron configuration, electrons per shell
• densities of the elements (data page) — density (solid, liquid, gas)
• Electron affinity (data page) — electron affinity
• melting points of the elements (data page) — melting point
• boiling points of the elements (data page) — boiling point
• critical points of the elements (data page) — critical point
• heats of fusion of the elements (data page) — heat of fusion
• heats of vaporization of the elements (data page) — heat of vaporization
• heat capacities of the elements (data page) — heat capacity
• vapor pressures of the elements (data page) — vapor pressure
• electronegativities of the elements (data page) — electronegativity (Pauling scale)
• ionization energies of the elements (data page) — ionization energies
• atomic radii of the elements (data page) — atomic radius (empirical), atomic radius (calculated), van der Waals radius, covalent radius
• electrical resistivities of the elements (data page) — electrical resistivity
• thermal conductivities of the elements (data page) — thermal conductivity
• thermal expansion coefficients of the elements (data page) — thermal expansion
• speeds of sound of the elements (data page) — speed of sound
• elastic properties of the elements (data page) — Young's modulus, Poisson ratio, bulk modulus, shear modulus
• hardnesses of the elements (data page) — Mohs hardness, Vickers hardness, Brinell hardness
• abundances of the elements (data page) — Earth's crust, sea water, Sun and solar system
• list of oxidation states of the elements — oxidation states