Which of the Following Statements About Mendeleev's Periodic Table Is

question 81

Multiple Choice

Which of the following statements about Mendeleev's periodic table is incorrect?

• A)Mendeleev arranged the known elements in order of increasing relative atomic mass.
• B)He grouped elements with similar properties into columns and rows so that their properties varied in a regular pattern.
• C)He arranged the elements so that they were in increasing atomic number order.
• D)He was able to predict the existence and properties of several elements that were unknown at the time.
• E)Mendeleev developed his table before the discovery of protons.

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