Use the following infbrmation to ansn'er the next three questions. Carbon Dating Using a Mass Spectrometer One method of determining the age of archeological remains is carbon dating. Of all carbon isotopes present in living tissue, 1.66 x 1010% are carbon-l4. The radioactive half-life of carbon-14 is 5.73 x 103 years. A mass spectrometer is a device that separates ions of different masses and can be used to determine the percentage of carbon-14 present in a sample. In a mass spectrometer, a source produces gaseous ions that are accelerated by two vertical parallel plates that have a large potential difference between them. The beam of ions enters a velocity selector that allows only those ions with a specific velocity to pass through undeflected. Finally, the ions enter a magnetic field 32 where the ions are separated according to their mass. @326) Accelerator V1 'l e 6) ? 0 '3 **** Bl 9-1;"l\" _" ._ Velocity selector +i l 2 G O G) G) e[ 9 Ion separation region G) Indicates B] and B; directed perpendicularly out of the page. A leather sandal from an archeological find is analyzed in order to determine the age of the sandal. In the leather sandal, the mass spectrometer measures the carbon-14 content as 8.30 x 10'1 1% of all carbon isotopes present. The approximate age of the sandal is A. 1.43 x 103 years B. 5.73 x 103 years C. 1.15 >