Description

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

Usage

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

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