Natural abundance of nuclear isotopes.
Q = nucabund(Isotopes)
This function returns the natural abundance of the nuclei
specified in Isotopes
, as a number between 0 (not
occurring naturally) and 1 (the only naturally occurring isotope).
Isotopes
is a character array giving the mass number and the
chemical symbol of the element, e.g. '14N'
or '63Cu'
.
If Isotopes
is a comma-separated list of isotope labels,
the function returns a list of all abundances in vector form.
The data are taken from an internal database through nucdata.
w = nucabund('63Cu,65Cu')
w = 0.6917 0.3083
sum(w)
ans = 1
nucdata, nucgval, nucqmom, nucspin