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NCERT Solutions for Class 10 Science Chapter 5: Periodic Classification of Elements

VIGYAN
NCERT Solutions for Class 10 Science Chapter 5: Periodic Classification of Elements Periodic Classification of Elements NCERT Solutions for Class 10 Science • Chapter 5 NCERT In-Text Questions Question 1. Did Doberiener's triads also exist in the columns of Newlands' Octaves? Compare and find out. Show Answer Show Explanation Answer: Yes, some of Doberiener's triads did exist in the columns of Newlands' Octaves. Explanation: For example, the triad of Lithium (Li), Sodium (Na), and Potassium (K) exists in both Doberiener's triads and Newlands' Octaves as they share similar chemical properties. Question 2. What were the limitations of Doberiener's Triads? Show Answer Show Explanation Answer: All known elements could not be classified into groups of triads. Explanation: Not all groups of elements obeyed the Law of Triads based on their atomic masses and properties. Only a limited numb…