3 ms·
No, that is more from the association of radioactivity with radium paint, which is a mixture of radium and a phosphor, similar to glow-in-the-dark paint. The ra
by user-the-name 5y ago
No, that is more from the association of radioactivity with radium paint, which is a mixture of radium and a phosphor, similar to glow-in-the-dark paint. The radium will keep the phosphor "charged" so that the paint will keep glowing without having to be exposed to a light source.