For the last fifty or so years, the periodic table has been incomplete. Elements after uranium on the periodic table have been synthesized for the past few decades, but there were always a few missing ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Remember your periodic table from high school chemistry? As of Monday, it will look a little different. Four new elements have been added to the tail end of the familiar chart, completing the seventh ...

Break out the champagne; the 7th row of the periodic table has been completed with the addition of four new elements. While their existence had been predicted before, they have only now been ...

Four new elements have been added to the periodic table, finally rounding out the chemical table’s seventh row, officials said. The International Union of Pure and Applied Chemistry (IUPAC) verified ...

The seventh row of the periodic table of elements has finally been completed, thanks to a group of Japanese, Russian and American researchers. The new substances discovered still have no official ...

It’s been almost six years since chemists have added to the periodic table, but the recent confirmation of four new elements not only ends the drought, it completes the seventh row of the table. Any ...