Dr Hibbert, who is the secretary of the analytical division of IUPAC, said the periodic table was revised more often than people thought. "These things come periodically, every now and then.

Four new elements have been added to the standard periodic table and their creators from Japan, Russia and the United States will now come up with permanent names and symbols for them.

With these elements, the atomic weight of the longest-lived isotope gets listed on the periodic table, according to the International Union of Pure and Applied Chemistry (IUPAC).

Atomic weights of 10 elements on periodic table about to make an historic change Date: December 16, 2010 Source: University of Calgary Summary: For the first time in history, a change will be made ...

Meet nihonium (Nh), moscovium (Mc), tennessine (Ts) and oganesson (Og), the newest elements on the periodic table to receive names. But don’t get too attached to the nomenclature for these ...

This is how carbon looks on a revised periodic table that uses intervals for the standard atomic weights of some elements. T.B. Coplen (U.S. Geological Survey). June 14, 2013, 6:16 PM EDT ...

4 New Elements Are Added To The Periodic Table : ... is complete," according to the IUPAC. ... is that they decay into hitherto unknown isotopes of slightly lighter elements that also ...

image: Michael Wieser, a professor at the University of Calgary, is contributing to changes to the periodic table. He works with a thermal ionization mass spectrometer used to measure the isotope ...

The periodic table of the elements is also seeing a size increase. On December 30, the International Union of Pure and Applied Chemistry (IUPAC) approved four new elements for inclusion in the table.

High school chemistry students will now have to learn about four additional elements on the Periodic Table of Elements.The International Union of Pure and Applied Chemistry (IUPAC) has announced ...