Atomic mass unit (u)
Definition: Atomic mass unit (symbol: u), wey dem dey call unified atomic mass unit, dem define am as 1/12 of the mass of carbon-12 atom. Na very small unit wey dem dey use for atom and molecule science.
History/origin: Atomic mass unit come so chemists and physicists fit compare atom and molecule masses with practical relative standard instead of kilograms.
Current use: Atomic mass units dey used for chemistry, nuclear physics, and molecular science to express mass of atoms, isotopes, and molecules.