Core Data

Periodic Table

class chemlib.chemistry.PeriodicTable(*args, **kwargs)

Bases: pandas.core.frame.DataFrame

A pandas.Dataframe object that contains periodic table data:

>>> import chemlib
>>> chemlib.PeriodicTable()
    Unnamed: 0  AtomicNumber  ...                  Config MassNumber
0             0           1.0  ...                     1s1        1.0
1             1           2.0  ...                     1s2        4.0
2             2           3.0  ...                [He] 2s1        7.0
3             3           4.0  ...                [He] 2s2        9.0
4             4           5.0  ...            [He] 2s2 2p1       11.0
..          ...           ...  ...                     ...        ...
113         113         114.0  ...  [Rn] 5f14 6d10 7s2 7p2      289.0
114         114         115.0  ...  [Rn] 5f14 6d10 7s2 7p3      288.0
115         115         116.0  ...  [Rn] 5f14 6d10 7s2 7p4      292.0
116         116         117.0  ...  [Rn] 5f14 6d10 7s2 7p5      295.0
117         117         118.0  ...  [Rn] 5f14 6d10 7s2 7p6      294.0
[118 rows x 31 columns]

Column Names

>>> list(chemlib.pte)   #Column names
['AtomicNumber', 'Element', 'Symbol', 'AtomicMass', 'Neutrons', 'Protons', 'Electrons', 'Period', 'Group', 'Phase', 'Radioactive', 'Natural', 'Metal', 'Nonmetal', 'Metalloid', 'Type', 'AtomicRadius', 'Electronegativity', 'FirstIonization', 'Density', 'MeltingPoint', 'BoilingPoint', 'Isotopes', 'Discoverer', 'Year', 'SpecificHeat', 'Shells', 'Valence', 'Config', 'MassNumber']

PTable GUI

>>> import chemlib
>>> chemlib.GUI()

Elements

class chemlib.chemistry.Element(symbol)

A class containing all the properties of an element:

Contains all the properties of the respective element:

>>> from chemlib import Element
>>> xenon = Element('Xe') #Instantiate with symbol of Element
>>> xenon.properties
{'AtomicNumber': 54.0, 'Element': 'Xenon', 'Symbol': 'Xe', 'AtomicMass': 131.293, 'Neutrons': 77.0, 'Protons': 54.0, 'Electrons': 54.0, 'Period': 5.0, 'Group': 18.0, 'Phase': 'gas', 'Radioactive': False, 'Natural': True, 'Metal': False, 'Nonmetal': True, 'Metalloid': False, 'Type': 'Noble Gas', 'AtomicRadius': '1.2', 'Electronegativity': nan, 'FirstIonization': '12.1298', 'Density': '0.00589', 'MeltingPoint': '161.45', 'BoilingPoint': '165.03', 'Isotopes': 31.0, 'Discoverer': 'Ramsay and Travers', 'Year': '1898', 'SpecificHeat': '0.158', 'Shells': 5.0, 'Valence': 8.0, 'Config': '[Kr] 4d10 5s2 5p6', 'MassNumber': 131.0}
>>> xenon.AtomicMass
131.293
>>> xenon.FirstIonization
'12.1298'

chemlib.chemistry.Element.AtomicNumber: float

chemlib.chemistry.Element.Element: str = The name of the element

chemlib.chemistry.Element.Symbol: str = The symbol of the element

chemlib.chemistry.Element.AtomicMass: float

chemlib.chemistry.Element.Neutrons: float

chemlib.chemistry.Element.Protons: float

chemlib.chemistry.Element.Electrons: float

chemlib.chemistry.Element.Period: float

chemlib.chemistry.Element.Group: float

chemlib.chemistry.Element.Phase: str = The state of matter of the element at room temperature.

chemlib.chemistry.Element.Radioactive: boolean

chemlib.chemistry.Element.Natural: boolean

chemlib.chemistry.Element.Metal: boolean

chemlib.chemistry.Element.Nonmetal: boolean

chemlib.chemistry.Element.Metalloid: boolean

chemlib.chemistry.Element.Type: str

chemlib.chemistry.Element.AtomicRadius: str

chemlib.chemistry.Element.Electronegativity: str or NaN

chemlib.chemistry.Element.FirstIonization: str or NaN

chemlib.chemistry.Element.Density: float

chemlib.chemistry.Element.MeltingPoint: float

chemlib.chemistry.Element.BoilingPoint: float

chemlib.chemistry.Element.Isotopes: float

chemlib.chemistry.Element.Discoverer: str

Other Constants

chemlib.AVOGADROS_NUMBER: float = 6.02e+23

Contains Avogaadro’s Number, which relates the number of constituent particles in a sample with the amount of substance in that sample.

>>> import chemlib
>>> chemlib.AVOGADROS_NUMBER
6.02e+23

chemlib.c: float = 2.998e+8

The speed of light.

chemlib.h: float = 6.626e-34

Planck’s constant.

chemlib.R: float = 1.0974e+7

Rydberg constant.