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CHEMISTRY ASSIGNMENT #2 NAME:___________________________<br />
18. What is Mendeleev's periodic law?<br />
19. Explain why Mendeleev included blanks in his periodic table. How did these blank<br />
spaces strengthen the belief in his method of organizing the elements?<br />
20. Why was Mendeleev able to predict the properties of the elements that belonged in<br />
the blanks in his table?<br />
21. How were elements in Moseley's periodic table arranged?<br />
22. Is our modern periodic table based on atomic mass or atomic number?
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