Dimensional formula of Atomic mass unit

How to get the dimensional formula of atomic mass unit

1. Start from the definition: atomic mass unit = mass.
2. Put in the dimension of each part: [M].
3. Add the powers of each base quantity: [M].

Quantities with the dimensions [M]

• Mass
• Electron mass

Equal dimensions do not make them the same quantity. Compare atomic mass unit with the others in the full grid.

Three questions on atomic mass unit

Related quantities

• G Gravitational constant [M⁻¹ L³ T⁻²]
• c Speed of light [L T⁻¹]
• h Planck's constant [M L² T⁻¹]
• ħ Reduced Planck's constant (h-bar) [M L² T⁻¹]
• k Boltzmann constant [M L² T⁻² K⁻¹]
• R Universal gas constant [M L² T⁻² K⁻¹ mol⁻¹]