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en.wikipedia.org/wiki/Relative_atomic_mass

The IUPAC commission CIAAW maintains a more strict definition of the relative atomic weight, named standard ...

www.britannica.com/science/atomic-weight

Atomic weight, also called relative atomic mass, ratio of the average mass of a chemical element's atoms to some standard. Since 1961 the standard unit of ...

dl.clackamas.edu/ch104-03/relative.htm

Relative Atomic Weights. Let's look at some of the things you have already learned in this course. You know that elements can combine with one another to form ...

pubman.mpdl.mpg.de/pubman/item/escidoc:2251117:3/component/escidoc:2251119/BGC241

Feb 25, 2016 ... The Commission on Isotopic Abundances and Atomic Weights .... atomic weight ( also called the relative atomic mass) of isotope iE of element E ...

www.school-for-champions.com/chemistry/atomic_weight.htm

Atomic Weight in Chemistry. by Ron Kurtus (revised 30 August 2012). The atomic weight—or more correctly stated: relative atomic mass—of an element is a ...

www.khanacademy.org/science/chemistry/atomic-structure-and-properties/introduction-to-the-atom/v/atomic-weight-and-atomic-mass

Atomic weight is the average mass of all of the naturally-occurring isotopes of an element. ... Atomic weight is an outdated way to refer to relative atomic mass.

users.stlcc.edu/gkrishnan/atomicweight.html

The atomic weight of an element is the relative atomic mass of that element. It is actually a weighted mass of the elements isotopes (if any) and their relative ...

science.jrank.org/pages/634/Atomic-Weight-History.html

The weight of oxygen could then be calculated because of earlier work by ... So far, all the knowledge about atomic weights was relative to the weight of ...

www.ciaaw.org/info.htm

Why do some elements have no standard atomic weight? 4. ... with more than one isotope, their atomic weight depends on the relative amounts of the isotopes,  ...

www.acs.org/content/acs/en/education/whatischemistry/landmarks/atomicweightofoxygen.html

Since atoms were far too small to be measurable in absolute terms during the 19 th century, chemists determined elemental atomic weights in relative terms.