d.periodic: Periodic Table of Elements

Description

This data.frame contains the most important properties of the periodic table of the elements.

Usage

data(d.periodic)

Arguments

Format

A data frame with 110 observations on the following 24 variables.

symbol: symbol of an element.
nr: atomic number of an atomic symbol.
name: name of an element.
group: group of an element. Possible results are: Alkali Earth, Alkali Met., Halogen, Metal, Noble Gas, Non-Metal, Rare Earth and Trans. Met.
weight: atomic weight of an element. The values are based upon carbon-12. () indicates the most stable or best known isotope.
meltpt: melting point of an element in [K].
boilpt: boiling point of an element in Kelvin [K].
dens: density of an element in [g/cm3] at 300K and 1 atm.
elconf: electron configuration of an element.
oxstat: oxidation states of an element. The most stable is indicated by a "!".
struct: crystal structure of an element. Possible results are: Cubic, Cubic body centered, Cubic face centered, Hexagonal, Monoclinic, Orthorhombic, Rhombohedral, Tetragonal
covrad: covalent radius of an element in Angstroem [A].
arad: atomic radius of an element in Angstroem.
avol: atomic volume of an element in [cm3/mol].
spheat: specific heat of an element in [J/(g K)].
eneg: electronegativity (Pauling's) of an element.
fusheat: heat of fusion of an element in [kJ/mol].
vapheat: heat of vaporization of an element in [kJ/mol].
elcond: electrical conductivity of an element in [1/(Ohm cm].
thermcond: thermal conductivity of an element in [W/(cm K)].
ionpot1: first ionization potential of an element in [V].
ionpot2: second ionization potential of an element in [V].
ionpot3: third ionization potential of an element in [V].
discyear: year of discovery of the element

References

http://en.wikipedia.org/wiki/Periodic_table