You searched for: “constant
constant
A quality of a measurement that never changes in magnitude; for example, gravitational forces on earth or another planet is constant and does not change.
This entry is located in the following unit: Measurements and Mathematics Terms (page 5)
Word Entries containing the term: “constant
Avogadro's number, Avogadro's constant
The number of carbon atoms in twelve grams of the carbon-12 isotope.

The relative atomic mass of any element, expressed in grams, contains this number of atoms.

It is named for an Italian physicist Amedeo Avogadro (1776-1856).

This entry is located in the following unit: Measurements and Mathematics Terms (page 2)