News

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...
In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, atomic weight and the broad group they live in.
One of the biggest changes in decades is set to be made to the periodic table, with the atomic weight of 10 elements altered to better reflect how they occur in nature. For more than a century ...
Related: New element confirmed for periodic table These super-heavy elements, which include all the elements beyond atomic number 104, are not found naturally on Earth, and thus have to be created ...
The periodic table is a fundamental part of understanding chemistry. Elements define our universe: they are the components and foundation of the substances that we interact with every day.
The first was Technetium, but we’ve now synthesized 24 “artificial elements” - filling in Mendelev’s gaps, and also extending the periodic table all the way 118, Oganesson, with its half ...
The periodic table of the elements, principally created by the Russian chemist, Dmitry Mendeleev (1834-1907), celebrated its 150th anniversary last year. It would be hard to overstate its importance ...
The International Union of Pure and Applied Chemistry (IUPAC) has announced that four new elements — with atomic numbers of 113, 115, 117, and 118 — will be added to the periodic table.
Arguably, the heaviest naturally occurring element on Earth, in any substantial amount, is uranium, with the atomic number 92 (it has 92 protons in its nucleus), although neptunium (atomic number ...