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 ...

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 ...

Protons are tiny particles just a femtometer across, but without them, atoms wouldn't exist. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of star stuff.--Carl Sagan Almost all ...

The film discusses the dual nature of atomic energy, likening it to the sun, which can both sustain and destroy life. It explains the structure of atoms and the process of nuclear fission, leading to ...

This article was updated June 28 at 4:54 p.m. ET. Scientists have long wondered whether there is a limit to the number of protons and neutrons that can be clustered together to form the nucleus of an ...

In our smartphones, our computers and in our electric cars: We use rechargeable lithium-ion batteries everywhere. But their capacity drops after a while. Now a German-American research team has ...

That neutrons can be transmuted to protons, electrons and antineutrinos through the process of beta decay is old hat. That photons sometimes also get in on the act was suspected, but until now never ...

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 ...

The finding could be put to use at a new facility opening in 2020 that might create new elements—that is, nuclei with more than 118 protons—in addition to new isotopes of the known elements Scientists ...