Thorium atom,conceptual image. Computer illustration showing the orbits (blue lines) of electrons (bright spots) around the nucleus (round,centre) of a single thorium atom. Thorium is a radioactive metal element. Each thorium atom contains 90 electrons orbiting around the 90 protons and 90 neutrons (small spheres,centre) that make up its nucleus | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Kail, Richard |
Bildgröße: | 4228 px × 4228 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |