Question
Download Solution PDFIn which year did John Alexander Newlands propound a new concept of the 'Law of Octaves' proposing the periodicity of chemical elements arranged in order of atomic weight?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 1865.Key Points
- John Alexander Newlands propounded the concept of the "Law of Octaves" in the year 1865.
- The Law of Octaves proposed that the chemical elements exhibit similar properties after every eighth element when arranged in order of increasing atomic weight.
- This concept was later refined by Dmitri Mendeleev, who developed the modern periodic table of elements.
Additional Information
- The law of octaves by Newland was an early attempt to categorize elements into groups according to their characteristics.
- Based on their atomic masses, He put them in ascending order and saw that every eighth element had characteristics in common.
- Newlands compared the similarity between the elements to the octaves of music, where every eighth note is compared to the first.
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