Thallium (Tl) belongs to the Group 3 - Boron Family of elements. In the new IUPAC grouping, The Boron family is now Group 13.
Page updated 2/25/2016. Carrier, clerk, mail handlers, and distribution associates are required to take and pass the 473 Postal Exam. Other applicants including motor vehicle operators, mechanic, clerical, electronic technician, machinist, and trades must also pass a written test.
ServSafeÂ® Food Manager Certification. Our 8 hour review and exam consists of a National Restaurant Association Educational Foundation (NRA EF)-approved instructor conducting six hours of instruction and then administering the ServSafe food safety exam. Classes are available in cities throughout Michigan. The ServSafe exam consists of 90 questions. Testers must receive at least a 75 percent score or better to pass this test and obtain their Food Safety Certificate. All tests are graded by the NRA EF and take approximately 14-21 business days to process.