k Astatine, atomic structure Diagram of the nuclear composition, electron configuration, and valence outer electron orbitals of an atom of astatine210 atomic number 85, an isotope of this element. The nucleus consists of 85 protons blue and 125 neutrons red. Astatine is a radioactive halogen in group 17, period 6, and the pblock of the periodic table. Astatine210, the most stable of the isotopes of astatine, has a halflife of just over 8 hours. Photo by CARLOS CLARIVANSCIENCE PHOTO LIBRARY Stock Photo - Afloimages
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Astatine, atomic structure Diagram of the nuclear composition, electron configuration, and valence  outer electron  orbitals of an atom of astatine 210  atomic number: 85 , an isotope of this element. The nucleus consists of 85 protons  blue  and 125 neutrons  red . Astatine is a radioactive halogen in group 17, period 6, and the p block of the periodic table. Astatine 210, the most stable of the isotopes of astatine, has a half life of just over 8 hours. Photo by CARLOS CLARIVAN SCIENCE PHOTO LIBRARY
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Astatine, atomic structure

Diagram of the nuclear composition, electron configuration, and valence (outer electron) orbitals of an atom of astatine-210 (atomic number: 85), an isotope of this element. The nucleus consists of 85 protons (blue) and 125 neutrons (red). Astatine is a radioactive halogen in group 17, period 6, and the p-block of the periodic table. Astatine-210, the most stable of the isotopes of astatine, has a half-life of just over 8 hours. Photo by CARLOS CLARIVAN/SCIENCE PHOTO LIBRARY

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