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Prefer Newsweek on Google to see more of our trusted coverage when you search. This year is the International Year of the Periodic Table of Chemical Elements—and today (March 6), the modern version ...

For now, they're known by working names, like ununseptium and ununtrium — two of the four new chemical elements whose discovery has been officially verified. The elements with atomic numbers 113, 115, ...

The periodic table isn’t just a list of elements—it’s a map of predictable patterns called periodic trends. These trends, like atomic radius, electronegativity, and ionization energy, help scientists ...

The periodic table has become an icon of science. Its rows and columns provide a tidy way of showcasing the elements — the ingredients that make up the universe. It seems obvious today, but it wasn’t ...

In Cambridge, Massachusetts, right near the MIT campus, there’s a great little bar called “Miracle of Science.” It’s as if someone took everything from my science-outreach-filled dreams and made it a ...

You might not realize it, but almost everywhere around you are rare metals from the earth. In your phone, computer, or any other LCD screen, for example, you’ll find a dash of indium, a soft, ...

This lesson utilizes an adaptation of the board game Periodic: A Game of the Elements to help students better understand both general periodic trends and the law of conservation of energy. This ...

How far into the periodic table could you get? Would you be breaking any laws? At what point would your periodic table start ...

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. On the morning of February ...