Diagram of the nuclear composition, electron configuration, and valence orbitals of an atom of ytterbium-183 (atomic number: 70), an isotope of this element. The nucleus consists of 70 protons (blue) and 113 neutrons (red). Ytterbium is a lanthanide in period 6, and the f-block of the periodic table. It melts at 824 degrees Celsius. The trend across the lanthanide series arises from the failure of electrons filling an inner f-subshell (here, within the 4th ring) to shield outer (valence) electrons from increasing nuclear charge. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Clarivan, Carlos |
Bildgröße: | 4800 px × 3872 px |
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