Revise groups in the periodic table for your GCSE chemistry foundation and higher triple science exams with Bitesize interactive practice quizzes covering feedback and ... group 1 elements ...

Elements in the periodic table are arranged in order of increasing atomic number. The atomic number represents the number of protons in an atom's nucleus, uniquely identifying each element.

The periodic table is arranged in rows and columns that group elements with similar chemical properties above and below each other. Element 119 (also known by its placeholder name, Ununennium ...

Discover who created the periodic table of elements and how it works. Learn about Dmitri Mendeleev’s contributions, its structure, and why it’s essential for science.

The elements on the periodic table of elements are listed in ways that emphasize certain relationships. There are families, periods (the horizonal rows) and groups (the vertical columns). The ...

The periodic table is getting an update. The International Union of Pure and Applied Chemistry announced that four new chemical elements have been assigned atomic numbers 113, 115, 117 and 118.

The iconic chart of elements has served chemistry well for 150 years. But it’s not the only option out there, and scientists are pushing its limits. By Siobhan Roberts When Sir Martyn Poliakoff ...

This year is the International Year of the Periodic Table of Chemical Elements—and today (March 6), the modern version celebrates its 150 th birthday.. To find out more about the table and how ...