New Scale of Nuclidic Masses and Atomic Weights

Journal Article · Sat May 19 04:00:00 EDT 1962 · Nature (London)

DOI:https://doi.org/10.1038/194621a0· OSTI ID:4830772

WICHERS, EDWARD

A discussion is presented of the situation which led to the existence of the chemicai scale (atomic weight of element O = l6) and the physical scale (atomic weight of principal O isotope = 16) and of the considerations that led to their replacement by a new scale. ln 1959, the lnternatlonal Commission of Atomlc Weights recommended the adoption of C¹² as the reference species wlth assigned relative mass of 12, since this isotope was acceptable to both chemists and physicists. The lnternational Union of Pure and Applied Physlcs and the International Unlon of Pure and Applled Chemlstry adopted this recommended scale. A table of atomic weights developed from a complete review of experimental data on the basis of the new scale ls presented together wlth a separate table for radloactive elements. (D.L.C.)

• Research Organization: National Bureau of Standards, Washington, D.C.
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-018805
• OSTI ID: 4830772
• Journal Information: Nature (London), Journal Name: Nature (London) Journal Issue: 4829 Vol. 194; ISSN 0028-0836
• Publisher: Nature Publishing Group
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CARBON 12
CHEMISTRY
ELEMENTS
ISOTOPES
OXYGEN 16
STANDARDS
TABLES