For the first time those little numbers that appear beneath some of the commonest elements in the periodic table boxes are about to change from a single value to an interval of numbers An ...

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Thank you for bringing to my attention the recent International Union of Pure & Applied Chemistry report “Atomic weights of the elements 2009” (C&EN, Dec. 20 ...

Nineteen elements on the periodic table — including gold, cadmium, arsenic and aluminum — are getting their atomic weights adjusted. The International Union of Pure and Applied Chemistry (IUPAC) ...

For the first time in history, a change will be made to the atomic weights of some elements listed on the periodic table of the chemical elements posted on walls of chemistry classrooms and on the ...

First 20 Elements Of The Periodic Table: The atomic number and symbols are important in chemistry. The atomic number of elements gives us an idea about the atomic structure of elements, such as how ...

An international team of physicists has measured the mass of a "strange" atomic nucleus with the aid of an innovative technique that is capable of significantly greater precision than that of previous ...