Atomic Mass Constant

Atomic mass constant, represented as m_u is 1 / 12 th of an unbound atom's mass of carbon-12 in its ground level and at rest. It can be defined as the ratio of the electron rest mass and the electron relative atomic mass. It is equal to 1 u (unified atomic mass unit). m_u = m _e / A _r(e).

Atomic mass constant, represented as m_u is 1 / 12 th of an unbound atom's mass of carbon-12 in its ground level and at rest. It can be defined as the ratio of the electron rest mass and the electron relative atomic mass. It is equal to 1 u (unified atomic mass unit). m_u = m _e / A _r(e).