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Regarding the limitations of Mendeléev’s classification, consider the following statements:
1. The Position of Hydrogen was ambiguous.
2. Isotopes of all elements posed a challenge to Mendeleev’s Periodic Law.
3. The atomic masses do not increase in a regular manner in going from one element to the next.
Which of the statements given above is/are correct?
  • a)
    1 and 2 only
  • b)
    2 Only
  • c)
    1 and 3 Only
  • d)
    1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Regarding the limitations of Mendeléev’s classification, consider the...
  • Certainly, no fixed position can be given to hydrogen in the Periodic Table. This was the first limitation of Mendeléev’s Periodic Table. He could not assign a correct position to hydrogen in his Table.
  • Isotopes were discovered long after Mendeléev had proposed his periodic classification of elements.
  • Isotopes of an element have similar chemical properties, but different atomic masses. Thus, isotopes of all elements posed a challenge to Mendeleev’s Periodic Law. Another problem was that the atomic masses do not increase in a regular manner in going from one element to the next. So it was not possible to predict how many elements could be discovered between two elements — especially when we consider the heavier elements.
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Regarding the limitations of Mendeléev’s classification, consider the following statements: 1. The Position of Hydrogen was ambiguous.2. Isotopes of all elements posed a challenge to Mendeleev’s Periodic Law.3. The atomic masses do not increase in a regular manner in going from one element to the next.Which of the statements given above is/are correct?a) 1 and 2 onlyb) 2 Onlyc) 1 and 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer?
Question Description
Regarding the limitations of Mendeléev’s classification, consider the following statements: 1. The Position of Hydrogen was ambiguous.2. Isotopes of all elements posed a challenge to Mendeleev’s Periodic Law.3. The atomic masses do not increase in a regular manner in going from one element to the next.Which of the statements given above is/are correct?a) 1 and 2 onlyb) 2 Onlyc) 1 and 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Regarding the limitations of Mendeléev’s classification, consider the following statements: 1. The Position of Hydrogen was ambiguous.2. Isotopes of all elements posed a challenge to Mendeleev’s Periodic Law.3. The atomic masses do not increase in a regular manner in going from one element to the next.Which of the statements given above is/are correct?a) 1 and 2 onlyb) 2 Onlyc) 1 and 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Regarding the limitations of Mendeléev’s classification, consider the following statements: 1. The Position of Hydrogen was ambiguous.2. Isotopes of all elements posed a challenge to Mendeleev’s Periodic Law.3. The atomic masses do not increase in a regular manner in going from one element to the next.Which of the statements given above is/are correct?a) 1 and 2 onlyb) 2 Onlyc) 1 and 3 Onlyd) 1, 2 and 3Correct answer is option 'D'. Can you explain this answer?.
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