ElementData

WMA link

ElementData["name“, ”property"]

gives the value of the property for the chemical
specified by name.

ElementData[n, "property"]

gives the value of the property for the n-th chemical element.

• • ElementData[74]

• • ElementData["He", "AbsoluteBoilingPoint"]

• • ElementData["Carbon", "IonizationEnergies"]

• • ElementData[16, "ElectronConfigurationString"]

• • ElementData[73, "ElectronConfiguration"]

The number of known elements:

• • Length[ElementData[All]]

Some properties are not appropriate for certain elements:

• • ElementData["He", "ElectroNegativity"]

Some data is missing:

• • ElementData["Tc", "SpecificHeat"]

All the known properties:

• • ElementData["Properties"]

• • ListPlot[Table[ElementData[z, "AtomicWeight"], {z, 118}]]