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 ...

Why does changing just one proton in the nucleus of an atom create a different element? The number of protons in an atomic ...

The “lead” of a pencil is actually made of a substance called graphite which is made of carbon atoms. The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and ...

As humanity continues to investigate the subatomic world, our understanding of details of the nature of atoms and atomic nuclei grows. For generations, scientists have been trying to understand the ...

Effective theorists: Sonia Bacca (left), Bijaya Acharya (centre) and Joanna Sobczyk. (Courtesy: Sabrina Hopp/Angelika Stehle) The interaction between an electron and a calcium-40 nucleus has been ...

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Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. The story of our cosmic history is one of an expanding and cooling ...

"Electrons will collide with protons or larger atomic nuclei at the Electron-Ion Collider to produce dynamic 3-D snapshots of the building blocks of all visible matter," according to the U.S.