Becquerel Becquerel The becquerel (; symbol: Bq) is the SI derived unit of radioactivity. One becquerel is defined as the activity of a quantity of radioactive material in which one nucleus decays per second. The becquerel is therefore equivalent to an inverse second, s. The becquerel is named after Henri Becquerel, who shared a Nobel Prize in Physics with Pierre and Marie Curie in 1903 for their work in discovering radioactivity. As with every International System of Units (SI) unit named for a person, the first letter of its symbol is uppercase (Bq). However, when an SI unit is spelled out
Geometrized unit system have the geometric dimension of "length". Physical quantities such as angular momentum which can be identified with the magnitude of a bivector have the geometric dimension of "area". Here is a table collecting some important physical quantities according to their dimensions in geometrized units. They are listed together with the appropriate conversion factor for SI units. This table can be augmented to include temperature, as indicated above, as well as further derived physical quantities such as various moments. Geometrized unit system A geometrized unit system or geometric unit system is a system of natural units in which the base physical