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38.9 x 38.9 cm ⏐ 15.3 x 15.3 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Silver (Ag). Diagram of the nuclear composition and electron configuration of an atom of silver-107 (atomic number: 47), the most common isotope of this element. The nucleus consists of 47 protons (red) and 60 neutrons (blue). 47 electrons (green) bind to the nucleus, successively occupying available electron shells (rings). Silver is a transition metal in group 11, period 5, and the d-block of the periodic table. It has a melting point of 962 degrees Celsius. The trends across the transition metals 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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