There are likely too many properties (85) for you to make a simple table:
ElementData["Properties"]
{"Abbreviation", "AdiabaticIndex", "AllotropeNames", "AllotropicMultiplicities", "AlternateNames", "AlternateStandardNames", "AtomicMass", "AtomicNumber", "AtomicRadius", "Block", "BoilingPoint", "BrinellHardness", "BulkModulus", "CASNumber", "Color", "CommonCompoundNames", "CovalentRadius", "CriticalPressure", "CriticalTemperature", "CrustAbundance", "CrystalStructure", "CuriePoint", "DecayMode", "Density", "DiscoveryCountries", "DiscoveryYear", "ElectricalConductivity", "ElectricalType", "ElectronAffinity", "ElectronConfiguration", "ElectronConfigurationString", "Electronegativity", "ElectronShellConfiguration", "FusionHeat", "GasAtomicMultiplicities", "Group", "HalfLife", "HumanAbundance", "IconColor", "IonizationEnergies", "IsotopeAbundances", "KnownIsotopes", "LatticeAngles", "LatticeConstants", "Lifetime", "LiquidDensity", "MagneticType", "MassMagneticSusceptibility", "MeltingPoint", "Memberships", "MeteoriteAbundance", "MohsHardness", "MolarMagneticSusceptibility", "MolarVolume", "Name", "NeelPoint",
"NeutronCrossSection", "NeutronMassAbsorption", "OceanAbundance", "Period", "Phase", "PoissonRatio", "QuantumNumbers", "Radioactive",
"RefractiveIndex", "Resistivity", "Series", "ShearModulus", "SolarAbundance", "SoundSpeed", "SpaceGroupName", "SpaceGroupNumber",
"SpecificHeat", "StableIsotopes", "StandardName", "SuperconductingPoint", "ThermalConductivity", "ThermalExpansion", "UniverseAbundance", "Valence", "VanDerWaalsRadius", "VaporizationHeat", "VickersHardness", "VolumeMagneticSusceptibility", "YoungModulus"}
So you'll have to pick out the ones you need.
Try this:
Table[
ElementData[n, ElementData["Properties"][[j]]],
{n, 118}, {j, {8,55,15,49}}] // TableForm
to get the atomic number (property 8), name (55), color (15) and boiling point (49).
EntityValue
call and plus anExport[<command-line-arg>,data,"TSV"]
. It'll be worth caching such a file, but it's good to have the option to regenerate it. Moreover if you need it for a specific element or set of them this gives a convenient pull method that doesn't involve the front-end. $\endgroup$