Convert Hundredweight (UK) (cwt (UK)) to Electron Mass (mₑ) instantly.
About these units
Hundredweight (UK) (cwt (UK))
The British hundredweight equals 112 pounds (50.802345 kg). The extra 12 pounds derive from England's historical use of a 14-pound stone. The British hundredweight was used across the former British Empire for trade, taxation, and freight classification. It scales into the long ton (20 cwt = 1 long ton), forming a fully coherent system within imperial measurements. While replaced by metric units in the UK, this unit persists in historical documents, trade archives, and older engineering references.
Electron Mass (mₑ)
The electron mass, approximately 9.10938356 × 10⁻³¹ kilograms, is a fundamental constant of nature and a cornerstone of atomic physics. Because electrons determine atomic structure, bonding, and electrical properties, their mass plays a crucial role in chemistry and solid-state physics. The smallness of the electron mass allows quantum phenomena to dominate electron behavior, enabling orbitals, tunneling, and band structures in materials. Electrons' tiny mass also affects how atoms interact with electromagnetic radiation, influencing spectral lines and optical properties. In particle physics, the electron mass is one of the defining parameters of the Standard Model, impacting interactions across quantum electrodynamics (QED) and beyond.