Radioactive alpha decay of polonium-218
Videonummer 11928211
| Radioactive alpha decay. Animation of a nucleus of polonium-218 decaying to lead-214 by emitting an alpha particle. An alpha particle is a high-energy helium nucleus, composed of two protons (red) and two neutrons (yellow). Alpha particles can only travel a short distance before being stopped, but are very damaging to body tissues within range, due to their relatively high mass. Polonium-218 has a half life of 3.1 minutes, and forms part of the decay chain of naturally-occurring uranium-238. | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Equinox Graphics |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Länge: | 14 Sekunden |
| Seitenverhältnis: | 16:9 |
| Restrictions: | - |
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