Dmitri Who? Name ______________________ Visit this site to answer questions 1-9: CHEMystery 1. Why was it necessary to create a periodic table? 2. What two properties are the modern periodic table based upon? ____________________________ and __________________________. 3. Name the two men credited with the development of the first periodic tables in 1869? ___________________ and _________________ . 4. Mendeleev’s table was based upon _____________________. 5. The table is called the periodic table because 6. Mendeleev’s periodic law states that __________________________________ 7. The modern periodic law states that __________________________________ 8. Mendeleev’s table was arranged in rows, called ________, and columns called ________. Elements of each ________ had similar properties. 9. Why didn’t some elements match perfectly on Mendeleev’s table? Visit this site to answer question 10: A Quick Look at the History of the Periodic Table 10. For this site, write the contribution of each person toward the development of the Periodic Table of Elements. Greek thinkers Lavoisier John Dalton DeChancourtois Cannizaro Newlands Meyer Mendeleev Mosely Seaborg Alexander Go to LearnAlberta and use Grolier Online to answer questions 11-17. 11. When and where was Dmitri Mendeleev born? 12. How many children were in his family? _____ What place is he in the birth order? _____ 13. Who influenced Mendeleev's work considerably while at the Karlsruhe Conference in Heidelberg, and how? 14. What were the two main themes that Mendeleev developed while writing his text book, The Principles of Chemistry? 15. Why did Mendeleev leave gaps in his periodic table? And, were his predictions correct? 16. Mendeleev was aware of the necessity to use science to solve the problems of the world. List four ways that Mendeleev helped his country, Russia. 17. What official position did Mendeleev hold until his death in 1907?
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