Illustration of the new astatine isotope's nuclear configuration

Researchers have discovered a new configuration of nuclear particles that decays by kicking out individual protons. With 85 protons and just 103 neutrons, the atomic nucleus is both the heaviest known to break down this way and the lightest known isotope of the element astatine. | AI News Digest

Published: September 1, 2025, 4:06 a.m. Science Positive

Researchers have unveiled a new configuration of nuclear particles, marking a significant discovery in nuclear physics. This atomic nucleus, consisting of 85 protons and 103 neutrons, is the heaviest known to decay by emitting individual protons, while also being the lightest isotope of astatine. Astatine is extremely rare on Earth, existing only as a decay product of heavier elements. The study utilized advanced techniques to generate and analyze this exotic nucleus, revealing its unusual prolate spheroid shape. This research not only enhances our understanding of nuclear decay but also opens avenues for further exploration of the fundamental building blocks of matter.

nuclear physicsastatineradioactive decayisotopesresearch