Package lib :: Module periodic_table

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Module periodic_table

source code

Module containing a Python object representation of the period table.

The currently used atomic weights are from:

Atomic weights of the elements 2011 (IUPAC Technical Report) (DOI: 10.1351/PAC-REP-13-03-02).

The currently used isotope atomic masses are taken from http://www.ciaaw.org/atomic-masses.htm, itself taken from:

M. Wang et al. (2012). The Ame2012 Atomic Mass Evaluation Chinese Physics C, 36, 1603-2014. (DOI: 10.1088/1674-1137/36/12/003).

Classes

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Element
A special object representing each element.

Isotope
A special object for the element container for holding different isotope information.

Periodic_table
The periodic table object.

Functions

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int, str

isotope_to_mass_symbol(isotope)
Convert the given isotope to its mass number and atomic symbol.

source code

float

process_mass(mass)
Process the given mass, handling ranges, unstable isotopes, and uncertainties.

source code

str

process_symbol(symbol)
Make sure the symbol is in the correct format.

source code

Variables

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periodic_table = {'Ru': <lib.periodic_table.Element instance a...

element = periodic_table._add(atomic_number= 118, symbol= 'Uuo...

__package__ = 'lib'

Imports: array, average, float64, search, split, RelaxError

Function Details

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isotope_to_mass_symbol(isotope)

source code

Convert the given isotope to its mass number and atomic symbol.

Parameters:

isotope (str) - The isotope name, e.g. '15N'.

Returns: int, str

The mass number A and atomic symbol.

process_mass(mass)

source code

Process the given mass, handling ranges, unstable isotopes, and uncertainties.

Parameters:

mass (str) - The atomic mass of standard atomic weight.

Returns: float

The corresponding mass.

process_symbol(symbol)

source code

Make sure the symbol is in the correct format.

Parameters:

symbol (str) - The atomic symbol.

Returns: str

The corrected atomic symbol.

Variables Details

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periodic_table

Value:

{'Ru': <lib.periodic_table.Element instance at 0x3f241b8>, 'Re': <lib.
periodic_table.Element instance at 0x3f2a368>, 'Rf': <lib.periodic_tab
le.Element instance at 0x3e0ecf8>, 'Rg': <lib.periodic_table.Element i
nstance at 0x3e0eea8>, 'Ra': <lib.periodic_table.Element instance at 0
x360ab00>, 'Rb': <lib.periodic_table.Element instance at 0x32b0908>, '
Rn': <lib.periodic_table.Element instance at 0x360aa28>, 'Rh': <lib.pe
riodic_table.Element instance at 0x3f24638>, 'Be': <lib.periodic_table
.Element instance at 0x32a44d0>, 'Ba': <lib.periodic_table.Element ins
...

element

Value:

periodic_table._add(atomic_number= 118, symbol= 'Uuo', name= 'Ununocti
um', atomic_weight= "[294]")