pmutt.constants.m_e

pmutt.constants.m_e(units)

Mass of an electron

Parameters:

units (str) –

Units for m_e. Supported units

Unit

Description

Value

kg

Kilograms

9.10938356e-31

g

Grams

9.10938356e-28

amu

Atomic mass units

5.48579909070e-4

Returns:

m_e – Mass of electron in appropriate units

Return type:

float

Raises:

KeyError – If units is not supported.