Chromium (Cr). Diagram of the nuclear composition and electron configuration of an atom of chromium-52 (atomic number: 24),this element's most common isotope. The nucleus consists of 24 protons (red) and 28 neutrons (blue). 24 electrons (green) bind to the nucleus,successively occupying available electron shells (rings). Chromium is a transition metal in group 6,period 4,and the d-block of the periodic table. It has a melting point of 1907 degrees Celsius. The trends across the transition metals are due to electrons filling an inner d-subshell (here,within the 3rd 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: | - |