PBS9y
Rutherford and Bohr describe atomic structure
As part of an experiment with x-rays in 1909, Rutherford was shooting a beam of alpha particles (or alpha rays, emitted by the radioactive element radium ... now and then, a particle bounced ...
Hosted on MSN1mon
The Story Of The Radium Girls And Their Decades-Long Fight For Justice
Light photons strike the radium atom, bumping its electrons into a higher orbit. After the sun sets and it gets dark, those electrons spontaneously drop into lower orbits, emitting a particle and ...
University of Manchester4y
Physicists measure short-lived radioactive molecules for the first time
“Our measurements demonstrate that radium monofluoride molecules can be chilled ... A subset of these excited molecules was then ionised with a second laser beam and deflected onto a particle detector ...
PBS2y
Rutherford and Bohr describe atomic structure
As part of an experiment with x-rays in 1909, Rutherford was shooting a beam of alpha particles (or alpha rays, emitted by the radioactive element radium ... now and then, a particle bounced ...