When Mendeleev developed his periodic table, he placed the ...

[azncindy619]

When Mendeleev developed his periodic table, he placed the greatest emphasis on
 
  A) the atomic number of the elements.
  B) putting elements with similar properties in the same column.
  C) leaving no holes or blank spaces in the table.
  D) the melting points of the elements.

Question 2

The number of moles of chlorine atoms in 12.5 g of carbon tetrachloride is ________.
 
  A) 0.081
  B) 0.162
  C) 0.325
  D) 0.648

[sylvia]

Answer to Question 1

B

Answer to Question 2

C

[azncindy619]

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[sylvia]

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