Elements Data

========

The following data are from mendeleev (see there for data sources):

Name	Comment
`abundance_crust`	Abundance in the Earth's crust
`abundance_sea`	Abundance in the seas
`annotation`	Annotations regarding the data
`atomic_number`	Atomic number
`atomic_radius`	Atomic radius
`atomic_radius_rahm`	Atomic radius by Rahm et al.
`atomic_volume`	Atomic volume
`atomic_weight`	Atomic weight
`atomic_weight_uncertainty`	Atomic weight uncertainty
`block`	Block in periodic table
`boiling_point`	Boiling temperature ^[1]
`c6`	C_6 dispersion coefficient in a.u.
`c6_gb`	C_6 dispersion coefficient in a.u. (Gould & Bučko)
`cas`	Chemical Abstracts Serice identifier
`covalent_radius_bragg`	Covalent radius by Bragg
`covalent_radius_cordero`	Covalent radius by Cerdero et al.
`covalent_radius_pyykko`	Single bond covalent radius by Pyykko et al.
`covalent_radius_pyykko_double`	Double bond covalent radius by Pyykko et al.
`covalent_radius_pyykko_triple`	Triple bond covalent radius by Pyykko et al.
`cpk_color`	Element color in CPK convention
`critical_pressure`	Critical pressure ^[1]
`critical_temperature`	Critical temperature ^[1]
`density`	Density at 295K ^[2]
`description`	Short description of the element
`dipole_polarizability`	Dipole polarizability
`dipole_polarizability_unc`	Dipole polarizability uncertainty
`discoverers`	The discoverers of the element
`discovery_location`	The location where the element was discovered
`discovery_year`	The year the element was discovered
`electron_affinity`	Electron affinity
`electrons`	Number of electrons
`electrophilicity`	Electrophilicity index
`electronic_configuration`	Ground state electron configuration (see also `el_config`)
`eneg`	Electronegativities. Returns `Electronegativities` type
`evaporation_heat`	Evaporation heat
`fusion_heat`	Fusion heat
`gas_basicity`	Gas basicity
`geochemical_class`	Geochemical classification
`glawe_number`	Glawe's number (scale)
`goldschmidt_class`	Goldschmidt classification
`group`	Group in periodic table
`heat_of_formation`	Heat of formation
`inchi`	International Chemical Identifier
`ionenergy`	Ionization energies
`ionic_radii`	Ionic and crystal radii
`is_monoisotopic`	Is the element monoisotopic
`is_radioactive`	Is the element radioactive
`isotopes`	Isotopes ^[3] . Returns `Isotopes` type
`jmol_color`	Element color in Jmol convention
`lattice_constant`	Lattice constant
`lattice_structure`	Lattice structure code
`mass_number`	Mass number (most abundant isotope)
`melting_point`	Melting temperature ^[1]
`mendeleev_number`	Mendeleev's number
`metallic_radius`	Single-bond metallic radius
`metallic_radius_c12`	Metallic radius with 12 nearest neighbors
`molar_heat_capacity`	Molar heat capacity @ 25 C, 1 bar
`molcas_gv_color`	Element color in MOCAS GV convention
`name`	Name in English
`name_origin`	Origin of the name
`neutrons`	Number of neutrons (most abundant isotope)
`oxistates`	Main oxidation states ^[4]
`nist_webbook_url`	URL for the NIST Chemistry WebBook
`period`	Period in periodic table
`pettifor_number`	Pettifor scale
`proton_affinity`	Proton affinity
`protons`	Number of protons
`sconst`	Nuclear charge screening constants. Returns `ScreenConstants` type.
`series`	Index to chemical series
`sources`	Sources of the element
`specific_heat_capacity`	Specific heat capacity @ 25 C, 1 bar
`symbol`	Chemical symbol
`thermal_conductivity`	Thermal conductivity @25 C
`triple_point_pressure`	Triple point pressure ^[1]
`triple_point_temperature`	Triple point temperature ^[1]
`uses`	Applications of the element
`vdw_radius`	Van der Waals radius
`vdw_radius_alvarez`	Van der Waals radius according to Alvarez
`vdw_radius_batsanov`	Van der Waals radius according to Batsanov
`vdw_radius_bondi`	Van der Waals radius according to Bondi
`vdw_radius_dreiding`	Van der Waals radius from the DREIDING FF
`vdw_radius_mm3`	Van der Waals radius from the MM3 FF
`vdw_radius_rt`	Van der Waals radius according to Rowland and Taylor
`vdw_radius_truhlar`	Van der Waals radius according to Truhlar
`vdw_radius_uff`	Van der Waals radius from the UFF

Electronegativities [5] (type returned by `eneg` field):

Name	Comment
`atomic_number`	Atomic number
`Allen`	Scale according to Allen
`Allred`	Scale of Allred-Rochow
`Cottrell`	Scale of Cottrell-Sutton
`Ghosh`
`Gordy`
`Martynov`	Scale of Martynov-Batsanov
`Mulliken`
`Nagle`
`Pauling`
`Sanderson`
`Li`	Scale of Li-Xue. Returns `LiXue` type.

Further properties, mostly from `PeriodicTable` (in part supported just for compatibility)

Name	Comment or synonym field
`appearance`
`atomic_mass`	-> `atomic_weight`
`boil`	-> `boiling_point`
`category`
`color`
`cpk_hex`	-> `cpk_color`
`discovered_by`	year of discovery, names of discoverers, and discovery location
`el_config`	electron configuration, another way
`melt`	-> `melting_point`
`molar_heat`	-> `molar_heat_capacity`
`number`	-> `atomic_number`
`phase`
`shells`
`spectral_img`	Wikipedia picture URL
`summary`	Some arbitrary general information
`xpos`	x-position of the element in the Periodic Table
`ypos`	y-position (both used for pretty print only)
`wikipedia`	Wikipedia URL

Properties from PeriodicTable omitted or changed in this package

Name	Comment
`color`	see `appearance` (`color` was anyway missing for all elements but one)
`named_by`	see `name_origin`
`source`	was in all cases a Wikipedia link, thus renamed to `wikipedia` ^[6]

1For elements with several allotropes existing at the phase transition temperature, the phase transition data corresponding to the most common are reported, namely: Antimony (gray), Carbon (graphite), Phosphorus (white), Selenium (gray), Sulfur (rhombic), Tin (white)
2For elements with several allotropes existing at room temperature, the density corresponding to the most common is reported, namely: Antimony (gray), Berkelium (α form), Carbon (graphite), Phosphorus (white), Selenium (gray), Sulfur (rhombic), Tin (white)
3Only naturally occurring stable or "almost stable" isotopes are listed, and only mass and abundance data. For comprehensive information on isotopes, see IsotopeTable. The isotopes property returns an Isotopes (see documentation for Isotopes and Isotope types).
4Retrieved by the package author mostly from Wikipedia - see comments in the source file oxistates_data.jl
5See mendeleev documentation for explanations and references
6In PeriodicTable the source field was the data source (which in all cases was a Wikipedia article on the element), whereas in (Python) mendeleev sources (plural) is the sources of the material substance. In this package the source field from PeriodicTable goes to wikipedia field.

Elements Data

The following data are from mendeleev (see there for data sources):

Electronegativities [5] (type returned by eneg field):

Further properties, mostly from PeriodicTable (in part supported just for compatibility)

Properties from PeriodicTable omitted or changed in this package

Electronegativities [5] (type returned by `eneg` field):

Further properties, mostly from `PeriodicTable` (in part supported just for compatibility)