For decades, scientists believed that lead-208 (²⁰⁸Pb), the heaviest known "doubly magic" nucleus, was perfectly spherical.

The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus. The electron and proton are attracted to each other.

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 ...

One leading explanation was that there were electrons and additional protons in the nucleus as well -- the ... He called it a neutron, and imagined it as a paired proton and electron.

Lead-208, recognized as the heaviest double magic isotope ever observed, has long served as a benchmark of stability and ...

Scientists have now mapped the forces acting inside a proton, showing in unprecedented detail how quarks—the tiny particles ...

Chinese scientists sustain plasma at 100 million degrees C for 1,066 seconds in EAST, advancing nuclear fusion research.