Practice Genesis Of Periodic Classification (3.2) - Classification of Elements and Periodicity in Properties

Practice: Genesis of Periodic Classification

Lesson 3.2Classification of Elements and Periodicity in Properties

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Who proposed the concept of triads in element classification?
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Think of the first scientist mentioned in our discussions.
Question 2.
What did Newlands compare his periodicity theory to?
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Remember, he related properties to music.
3Question 3.
Who discovered the concept of triads?
- Dmitri Mendeleev
- John Newlands
- Johann Dobereiner
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Think back to the very first classification we discussed.
4Question 4.
Is Newlands' Law of Octaves applicable to all elements?
- True
- False
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Consider the limitations discussed regarding its applicability.
Question 5.
Design a hypothetical element based on Mendeleev’s predictions. Classify it into the correct group based on molecular structure and behavior associated with its predicted properties.
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Think of gaps in Mendeleev's table.
Question 6.
Evaluate the impact of transitioning from atomic weight to atomic number on the classification of elements and periodicity. Discuss the advantages and implications.
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Consider how properties and periodic trends relate to atomic structure.

4 more questions in this section. Enroll free to practise them all.