9: Appendix Last updated Nov 7, 2022 Save as PDF 8.4.10: Critical Thinking Questions 9.1: Appendix A- The Periodic Table of Elements Page ID98312 ( \newcommand{\kernel}{\mathrm{null}\,}\) 9.1: Appendix A- The Periodic Table of Elements9.2: Appendix B- Geological Time9.3: Appendix C- Measurements and the Metric System