mendeleev.mendeleev

Functions

deltaN(id1, id2[, charge1, charge2, ...])	Calculate the approximate fraction of transferred electrons between elements or ions id1 and id2 with charges charge1 and charge2 respectively according to the expression
element(ids)	Based on the type of the ids identifier return either an Element object from the database, or a list of Element objects if the ids is a list or a tuple of identifiers.
get_all_elements()	Get all elements as a list
ids_to_attr(ids[, attr])	Convert the element ids: atomic numbers, symbols, element names or a combination of the above to a list of corresponding attributes.
isotope(symbol_or_atn, mass_number)	Get an Isotope based on the element symbol and mass number or atomic number and mass number.