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Europium, atomic structure

Europium, atomic structure

C045/6409

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53.2 MB (2.2 MB compressed)

4800 x 3872 pixels

40.6 x 32.8 cm ⏐ 16.0 x 12.9 in (300dpi)

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Credit

CARLOS CLARIVAN / SCIENCE PHOTO LIBRARY CARLOS CLARIVAN / SCIENCE PHOTO LIBRARY

Caption

Diagram of the nuclear composition, electron configuration, and valence orbitals of an atom of europium-152 (atomic number: 63), an isotope of this element. The nucleus consists of 63 protons (blue) and 89 neutrons (red). Europium is a lanthanide in period 6, and the f-block of the periodic table. It melts at 826 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 (valence) electrons from increasing nuclear charge.

Release details

Model release not required. Property release not required.

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