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 ...

In the case of lead-208—the heaviest stable isotope known so far—a team of researchers led by physicist Jack Henderson ...

Protons sit in the nuclei of all atoms, but they are not fundamental particles: They are made of three quarks held together by the strong nuclear force. The strength of this interaction is actually ...

These nuclei had specific numbers of protons or neutrons, or magic numbers, as physicist Eugene Wigner called them. The race to figure out what made these nuclei so stable began. Understanding ...

The mass of electrons is very small compared to protons and neutrons. Since a nucleus contains protons and neutrons, most of the mass of an atom is concentrated in its nucleus. Protons and ...

Scientists have achieved an incredible feat—mapping the forces inside a proton with extreme precision, uncovering the immense ...

They have a radius of around 1 × 10 10 metres. This symbol shows that chlorine has 35 particles in the nucleus (protons and neutrons), 17 of which are protons. It also tells us that chlorine has ...

In a surprising turn of events, an international team of scientists has found that lead-208 (208Pb), the heaviest known ...

including the quarks and gluons that make up the protons and neutrons of nuclei. The EIC requires sensitive and precise detectors, and SNSPDs will be valuable tools for capturing and analyzing the ...

a zinc beam consisting of 30 protons and 40 neutrons was used to bombard lead target nuclei, composed of 82 protons and 126 neutrons, resulting in a new element that had 112 protons and 166 ...