Platinum (Pt). Diagram of the nuclear composition and electron configuration of an atom of platinum-194 (atomic number: 78),the most common isotope of this element. The nucleus consists of 78 protons (red) and 116 neutrons (blue). 78 electrons (green) bind to the nucleus,successively occupying available electron shells (rings). Platinum is a transition metal in group 10,period 6,and the d-block of the periodic table. It has a melting point of 1768 degrees Celsius. The trends across the transition metals are due to electrons filling an inner d-subshell (here,within the 5th ring),shielding the outer electrons from the increasing nuclear charge | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4579 px × 4579 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |