Diagram of the nuclear composition and electron configuration of an atom of plutonium-239 (atomic number: 94), an isotope of this element. The nucleus consists of 94 protons (blue) and 145 neutrons (yellow). Plutonium is an actinide and transuranic element in period 7, and the f-block of the periodic table. Actinides are soft radioactive metals. The nucleus of plutonium-244 (half-life: 80 million years) emits an alpha particle to form uranium-240. Other plutonium isotopes are used in nuclear fuels and weapons. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Clarivan, Carlos |
Bildgröße: | 4800 px × 3872 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |