Ruthenium, atomic structure

Ruthenium, atomic structure


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Ruthenium (Ru). Diagram of the nuclear composition and electron configuration of an atom of ruthenium-102 (atomic number: 44), the most common isotope of this element. The nucleus consists of 44 protons (red) and 58 neutrons (blue). Ruthenium is a transition metal in group 8, period 5, and the d-block of the periodic table. It has a melting point of 2334 degrees Celsius. The transition metal trends are due to electrons filling an inner d-subshell (here, within the 4th ring), shielding the outer electrons from the increasing nuclear charge.

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