common_isotopes¶

plasmapy.particles.common_isotopes(argument: Optional[Union[str, numbers.Integral]] = None, most_common_only: bool = False) → List[str]

Return a list of isotopes of an element with an isotopic abundances greater than zero, or if no input is provided, a list of all such isotopes for every element.

Parameters
Returns

isotopes_list – List of all isotopes of an element with isotopic abundances greater than zero, sorted from most abundant to least abundant. If no isotopes have isotopic abundances greater than zero, this function will return an empty list. If no arguments are provided, then a list of all common isotopes of all elements will be provided that is sorted by atomic number, with entries for each element sorted from most abundant to least abundant.

Return type
Raises

Notes

The isotopic abundances are based on the terrestrial environment and may not be appropriate for space and astrophysical applications.

known_isotopes

returns a list of isotopes that have been discovered.

stable_isotopes

returns isotopes that are stable against radioactive decay.

isotopic_abundance

returns the relative isotopic abundance.

Examples

>>> common_isotopes('H')
['H-1', 'D']
>>> common_isotopes(44)
['Ru-102', 'Ru-104', 'Ru-101', 'Ru-99', 'Ru-100', 'Ru-96', 'Ru-98']
>>> common_isotopes('beryllium 2+')
['Be-9']
>>> common_isotopes('Fe')
['Fe-56', 'Fe-54', 'Fe-57', 'Fe-58']
>>> common_isotopes('Fe', most_common_only=True)
['Fe-56']
>>> common_isotopes()[0:7]
['H-1', 'D', 'He-4', 'He-3', 'Li-7', 'Li-6', 'Be-9']