Question detail

What is a key feature of Mendeleev's periodic table?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

The periodic table

Question

A. It only included metals.
B. It was based solely on atomic number.
C. It organized elements by their chemical properties.
D. It excluded any gaps for undiscovered elements.

Answer

It organized elements by their chemical properties.

Explanation

Mendeleev's periodic table was innovative because it organized elements based on their chemical properties, which was a significant advancement at the time.

Common mistake

Mendeleev's Element Order

Students often think Mendeleev only arranged elements by atomic weight without considering their chemical properties.

Emphasize that Mendeleev prioritized chemical properties over atomic weight when rearranging elements in his periodic table.

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