Related Experiment Video
Updated: Jun 23, 2026

Novel RNA-Binding Proteins Isolation by the RaPID Methodology
Published on: September 30, 2016
Discovery of 229Rn and the structure of the heaviest Rn and Ra isotopes from Penning-trap mass measurements
1Institut für Physik, Johannes Gutenberg-Universität, 55099 Mainz, Germany.
Abstract:
The masses of the neutron-rich radon isotopes {223-229}Rn have been determined for the first time, using the ISOLTRAP setup at CERN ISOLDE. In addition, this experiment marks the first discovery of a new nuclide, 229Rn, by Penning-trap mass measurement. The new, high-accuracy data allow a fine examination of the mass surface, via the valence-nucleon interaction deltaV{pn}. The results reveal intriguing behavior, possibly reflecting either a N=134 subshell closure or an octupolar deformation in this region.
Related Concept Videos
Subatomic Particles
Nuclear Transmutation
Isotopes and Radioisotopes
An isotope containing more...
Nuclear Stability
To hold positively charged protons together in the...
Atomic Structure
The DNA Helix

