Created 150 years ago, the Periodic Table is a triumph of form and function. Now this design classic has been updated for the 21st century – and opened up to a new audience.

Cation vs anion periodic table It can be possible to predict whether an atom will form a cation or an anion based on its position on the periodic table. Halogens always form anions, alkali metals and ...

Students will be able to interpret the information given in the periodic table to describe the arrangement of electrons on the energy levels around an atom.

Scientists around the world will be celebrating the 150th birthday of the periodic table this week. Here's the backstory of how the table came together.

Rows in the periodic table are called periods. Each period signifies a new energy level or electron shell being filled by the elements.

Discover the history, structure, and importance of the periodic table of elements, from Mendeleev’s discovery to modern scientific applications.

The familiar chart of elements is highly functional but a touch ugly. This minimalist makeover is a gorgeous (if not practical) alternative. The periodic table may be one of the greatest ...

After 150 years, is it time to flip the periodic table on its head? The chart would bring solidity to a field of inquiry that had long been squishy. But does it hold up, asks Siobhan Roberts ...

The periodic table of the chemical elements is found decorating the walls of chemistry classrooms everywhere. It sums up the foundations of chemistry in a single convenient chart.

150 years ago, Russian chemist Dmitrii Mendeleev created the periodic table of the elements, revolutionizing chemistry.

Cation vs anion periodic table It can be possible to predict whether an atom will form a cation or an anion based on its position on the periodic table. Halogens always form anions, alkali metals and ...