d.periodic: Periodic Table of Elements
Description
This data.frame contains the most important properties of the periodic table of the elements.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