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The atomic ratio is a measure of the ratio of atoms of one kind (i) to another kind (j). A closely related concept is the atomic percent (or at.%), which gives the percentage of one kind of atom relative to the total number of atoms. [1] The molecular equivalents of these concepts are the molar fraction, or molar percent.
The neutron–proton ratio (N/Z ratio or nuclear ratio) of an atomic nucleus is the ratio of its number of neutrons to its number of protons. Among stable nuclei and naturally occurring nuclei, this ratio generally increases with increasing atomic number. [ 1 ]
The mass-to-charge ratio (m/Q) is a physical quantity relating the mass (quantity of matter) and the electric charge of a given particle, expressed in units of kilograms per coulomb (kg/C). It is most widely used in the electrodynamics of charged particles , e.g. in electron optics and ion optics .
A stoichiometric amount [4] or stoichiometric ratio of a reagent is the optimum amount or ratio where, ... By definition, the atomic mass of carbon-12 is 12 ...
The Redfield ratio or Redfield stoichiometry is the consistent atomic ratio of carbon, ... P atomic ratio near 20:1 (later corrected to 16:1), and was very similar to ...
The current ratio shows a company’s ability to meet its short-term obligations. The ratio is calculated by dividing current assets by current liabilities. An asset is considered current if it ...
The trends of Christmas past are alive and well. Break out your family treasures or get in the spirit of collecting with these ideas for finding and displaying classic baubles.
Binding energy per nucleon of common isotopes. A graph of the ratio of mass number to atomic mass would be similar. The amount that the ratio of atomic masses to mass number deviates from 1 is as follows: the deviation starts positive at hydrogen-1, then decreases until it reaches a local minimum at helium-4. Isotopes of lithium, beryllium, and ...