IUPAC table of atomic weights to four significant figures

IUPAC Table of Atomic Weights to Four Significant Figures On behalf of the Committee on Teaching of Chemistry of the International Union of Pure and Applied Chemistry and in consultation with the IUPAC Commission on Atomic Weights and Isotopic Ahundanees, N.N. Greenwood and H.S. Peiser have prepared this "Table of Atomic Weights to Four Significant Figures." Copies of this table are available from Professor D. J. Waddington, Department of Chemistry, University of York, Heslington, York. YO1 5DD, UK. The table is scaled to the relative atomic mas8 of IZC= 12 exactly. Value8 quoted in this table are reliable to *1 or better in the fourth significant figure except for the five elements for which the larger indicated uncertainties apply. Each element that has neither a stable isotope nor a characteristic natural isotopic composition is represented in this table by one of that element's commonly known radioisotopes identified by its mass number (in superscript preceding the chemical symhol) and its relative atomic mass.

Atomic Number

Name

Symbol

Atmic Weight

Hydrwen Helium Lithium Beryllium Bomn Carbon Niuogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium

744

Journal of Chemical Education

Ammic Number

Name Bmmins Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium indium Tin Antimony Tellurium Iodine

xenon Caeslum Barium Lanthanum Cerium PraSBDdymlum Nwdymlum Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium

Symbol

Atomic Weight

Atomic Number

Name Thulium Ynerbium Lutetium Hafnium Tantalum Wolfram (Tungsten) Rhenium Osmium Iridium Platinum Gold Mercury Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium

Symbol

Atomic Weight