The experimental Bi−I bond length in bismuth triiodide, BiI 3 , is 2.81 Å. Based on this value and data in the figure, predict the atomic radius of Bi.

Hi everyone here, we have a question asking us given the atomic radius of the elements to determine the atomic radius of cesium. If the experimental bonding for cesium selenium is 4. angstrom. So we need to find selenium on our table here and it is right here. Its length is 117 PICO meters. So we need to convert that to angstrom. So we have selenium 117 PICO m times one angstrom Over 100 m. Our Picom will cancel out and that will give us 1.17 angstrom size. Our cesium selenium bond Is 4. Angstrom. So we need to subtract our 1.17 angstrom. That accounts for the selenium. So we'll just be left with cesium And that equals 3.01 Angstrom. And that is our final answer. Thank you for watching. Bye.