Lutetium is a photograph by Science Photo Library which was uploaded on October 5th, 2018.
Lutetium
Lutetium (Lu). Diagram of the nuclear composition and electron configuration of an atom of lutetium-175 (atomic number: 71), the most common isotope... more
Title
Lutetium
Artist
Science Photo Library
Medium
Photograph
Description
Lutetium (Lu). Diagram of the nuclear composition and electron configuration of an atom of lutetium-175 (atomic number: 71), the most common isotope of this element. The nucleus consists of 71 protons (red) and 104 neutrons (blue). 71 electrons (green) bind to the nucleus, successively occupying available electron shells (rings). Lutetium is a lanthanide in group 3, period 6, and the d-block of the periodic table. It melts at 1652 degrees Celsius. The trend across the lanthanide series arises from the failure of electrons filling an inner f-subshell (here, within the 4th ring) to shield outer electrons from increasing nuclear charge.
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October 5th, 2018
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