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Relative atomic mass

Index Relative atomic mass

Relative atomic mass (symbol: A) or atomic weight is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to one unified atomic mass unit. [1]

35 relations: Atom, Atomic mass, Avogadro constant, Boron, California, Carbon-12, Carbon-13, Chemical element, Commission on Isotopic Abundances and Atomic Weights, Empirical distribution function, Fluorine, International Union of Pure and Applied Chemistry, Isotope, Isotope analysis, Isotope geochemistry, IUPAC books, Mass, Measurement uncertainty, Methane, Metrology, Mononuclidic element, National Institute of Standards and Technology, Natural abundance, Nuclide, Oxygen-16, Physical quantity, Pure and Applied Chemistry, Radioactive decay, Significant figures, Silicon, Standard atomic weight, Turkey, Unified atomic mass unit, Weight, Weighted arithmetic mean.

Atom

An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.

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Atomic mass

The atomic mass (ma) is the mass of an atom.

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Avogadro constant

In chemistry and physics, the Avogadro constant (named after scientist Amedeo Avogadro) is the number of constituent particles, usually atoms or molecules, that are contained in the amount of substance given by one mole.

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Boron

Boron is a chemical element with symbol B and atomic number 5.

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California

California is a state in the Pacific Region of the United States.

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Carbon-12

Carbon-12 is the more abundant of the two stable isotopes of carbon (Carbon-13 being the other), amounting to 98.93% of the element carbon; its abundance is due to the triple-alpha process by which it is created in stars.

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Carbon-13

Carbon-13 (13C) is a natural, stable isotope of carbon with a nucleus containing six protons and seven neutrons.

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Chemical element

A chemical element is a species of atoms having the same number of protons in their atomic nuclei (that is, the same atomic number, or Z).

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Commission on Isotopic Abundances and Atomic Weights

The Commission on Isotopic Abundances and Atomic Weights (CIAAW) is an international scientific committee of the International Union of Pure and Applied Chemistry (IUPAC) under its Division of Inorganic Chemistry.

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Empirical distribution function

In statistics, an empirical distribution function is the distribution function associated with the empirical measure of a sample.

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Fluorine

Fluorine is a chemical element with symbol F and atomic number 9.

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International Union of Pure and Applied Chemistry

The International Union of Pure and Applied Chemistry (IUPAC) is an international federation of National Adhering Organizations that represents chemists in individual countries.

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Isotope

Isotopes are variants of a particular chemical element which differ in neutron number.

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Isotope analysis

Isotope analysis is the identification of isotopic signature, the abundance of certain stable isotopes and chemical elements within organic and inorganic compounds.

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Isotope geochemistry

Isotope geochemistry is an aspect of geology based upon the study of natural variations in the relative abundances of isotopes of various elements.

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IUPAC books

The International Union of Pure and Applied Chemistry publishes many books, which contain its complete list of definitions.

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Mass

Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.

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Measurement uncertainty

In metrology, measurement uncertainty is a non-negative parameter characterizing the dispersion of the values attributed to a measured quantity.

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Methane

Methane is a chemical compound with the chemical formula (one atom of carbon and four atoms of hydrogen).

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Metrology

Metrology is the science of measurement.

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Mononuclidic element

A mononuclidic element or monotopic element is one of the 22 chemical elements that is found naturally on Earth essentially as a single nuclide (which may, or may not, be a stable nuclide).

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National Institute of Standards and Technology

The National Institute of Standards and Technology (NIST) is one of the oldest physical science laboratories in the United States.

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Natural abundance

In physics, natural abundance (NA) refers to the abundance of isotopes of a chemical element as naturally found on a planet.

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Nuclide

A nuclide (from nucleus, also known as nuclear species) is an atomic species characterized by the specific constitution of its nucleus, i.e., by its number of protons Z, its number of neutrons N, and its nuclear energy state.

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Oxygen-16

Oxygen-16 (16O) is a stable isotope of oxygen, having 8 neutrons and 8 protons in its nucleus.

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Physical quantity

A physical quantity is a physical property of a phenomenon, body, or substance, that can be quantified by measurement.or we can say that quantities which we come across during our scientific studies are called as the physical quantities...

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Pure and Applied Chemistry

Pure and Applied Chemistry (abbreviated Pure Appl. Chem.) is the official journal for the International Union of Pure and Applied Chemistry (IUPAC).

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Radioactive decay

Radioactive decay (also known as nuclear decay or radioactivity) is the process by which an unstable atomic nucleus loses energy (in terms of mass in its rest frame) by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, gamma ray, or electron in the case of internal conversion.

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Significant figures

The significant figures (also known as the significant digits) of a number are digits that carry meaning contributing to its measurement resolution.

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Silicon

Silicon is a chemical element with symbol Si and atomic number 14.

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Standard atomic weight

The standard atomic weight (Ar, standard, a relative atomic mass) is the atomic weight (Ar) of a chemical element, as appearing and met in the earthly environment.

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Turkey

Turkey (Türkiye), officially the Republic of Turkey (Türkiye Cumhuriyeti), is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe.

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Unified atomic mass unit

The unified atomic mass unit or dalton (symbol: u, or Da) is a standard unit of mass that quantifies mass on an atomic or molecular scale (atomic mass).

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Weight

In science and engineering, the weight of an object is related to the amount of force acting on the object, either due to gravity or to a reaction force that holds it in place.

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Weighted arithmetic mean

The weighted arithmetic mean is similar to an ordinary arithmetic mean (the most common type of average), except that instead of each of the data points contributing equally to the final average, some data points contribute more than others.

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Redirects here:

Atomic Weight, Atomic mass/Table, Atomic weight, Atomic weight/Table, Atomic weights, Atomic wieght, Average atomic mass, Standard relative atomic mass.

References

[1] https://en.wikipedia.org/wiki/Relative_atomic_mass

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