Tungsten (W). Diagram of the nuclear composition,electron configuration,chemical data,and valence orbitals of an atom of tungsten-184 (atomic number: 74),the most common isotope of this element. The nucleus consists of 74 protons (red) and 110 neutrons (orange). 74 electrons (white) successively occupy available electron shells (rings). Tungsten is a transition metal in group 6,period 6,and the d-block of the periodic table. It has a melting point of 3422 degrees Celsius. The transition metal trends are due to electrons filling an inner d-subshell (here,within the 5th ring),shielding the outer (valence) electrons from the increasing nuclear charge | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Clarivan, Carlos |
Bildgröße: | 5197 px × 5008 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |