By sharing this link, I acknowledge that I have read and understand the Terms and Conditions.
53.2 MB (2.3 MB compressed)
4800 x 3872 pixels
40.6 x 32.8 cm ⏐ 16.0 x 12.9 in (300dpi)
CARLOS CLARIVAN / SCIENCE PHOTO LIBRARY CARLOS CLARIVAN / SCIENCE PHOTO LIBRARY
Diagram of the nuclear composition, electron configuration, and valence orbitals of an atom of tellurium-128 (atomic number: 52), an isotope of this element. The nucleus consists of 52 protons (blue) and 76 neutrons (red). 52 electrons (white) successively occupy available electron shells (rings). The stability of an element's outer (valence) electrons determines its chemical and physical properties. Tellurium is a metalloid in group 16, period 5, and the p-block of the periodic table. It has a melting point of 450 degrees Celsius. A rare element, it is used mostly in alloys, solar panels, and semiconductors.
Model release not required. Property release not required.