Quick geology lesson: There are 17 types of rare earths, and they’re used as the building blocks in cars, semiconductors, missiles, drones, and more. China mines 70% and processes 90% of the ...

That’s why this periodic table clock really caught our eye. [gocivici]’s idea is a simple one: light up three different elements with three different colors for hours, minutes, and seconds ...

An alternative periodic table of elements focusing on highly charged ions reveals new science that could support the quest for more accurate optical atomic clocks ...

'Periodic table of machine learning' could fuel AI discovery Researchers have created a unifying framework that can help scientists combine existing ideas to improve AI models or create new ones ...

Now we’ve solved the periodic table puzzle in Blue Prince we have to know where to use it. You actually use it on the machine in the Laboratory, but it won’t work until you power up the room.

The first version of Mendeleev’s periodic table, published in 1869, was reportedly completed in just one day. Historians have pieced together what happened during that day.

The periodic table as we know it is widely credited to Dmitri Mendeleev, a Russian chemist who kept reference cards on the elements and their atomic weight. In 1869, he noticed that the elements ...

Key Concepts The periodic table is a chart containing information about the atoms that make up all matter. An element is a substance made up of only one type of atom. The atomic number of an atom is ...

Show students that you have 80 cards (4 for each of the first 20 elements). Before distributing the cards, explain that each card contains information about electrons and energy levels for the first ...