A research team has discovered clusters of aluminum atoms that have chemical properties similar to single atoms of metallic and nonmetallic elements when they react with iodine. The discovery opens ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Researchers may have found a way to create a new superheavy element, known as "element 120," which would be so hefty that it would need to be put in a new row on the periodic table of elements. If ...

This episode is from WHRO’s Spotlight Earth series. Watch this video to learn about matter. In this Spotlight Earth episode, you will explore the fundamental building blocks of the universe, including ...

The rare radioactive substance made its way from the United States to Russia on a commercial flight in June 2009. Customs officers balked at accepting the package, which was ensconced in lead ...

Electron energy-loss spectroscopy is a technique broadly used to examine the chemical composition and bonding states of matter. When combined with transmission electron microscopy (TEM), EELS can be ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

A team of Russian and American scientists has discovered a new element that has long stood as a missing link among the heaviest bits of atomic matter ever produced. The element, still nameless, ...

When the Russian chemist Dmitri Mendeleev published his periodic table of elements in 1869, there were just fifty-nine entries on it. The table grouped those elements—hydrogen, oxygen, and carbon, ...

The story of the fifteenth element began in Hamburg, in 1669. The unsuccessful glassblower and alchemist Hennig Brandt was trying to find the philosopher’s stone, a mythical substance that could turn ...

You may have noticed that the rock formations are very different colors. The rock formations on the left are from Red Rock State Park in Texas, and on the right is El Capitan Mountain in Yosemite ...