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Get Answers to all your Questions
- #Class 11
- #National Eligibility Cum Entrance Test
- #Classification of elements and periodicity in properties
- #Medical
- #National Eligilibility Cum Entrance Test
- #Chemistry
Which of the following statements is correct?
Law of triads was given by Newlands
Mendeleev’s periodic law was based on the atomic number of the elements
Law of octaves was given by Newlands
All of these
Answers (1)
NEWLAND'S LAW of OCTAVES
John Alexander Reina Newland in England made the first attempt to correlate the chemical properties of the elements with their atomic weight. According to him -
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If the elements are arranged in order to their increasing atomic weights, every eighth element had similar properties to the first one like the first and eighth note in music. For example
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Inert gases were not discovered till then.
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All the elements could not be classified on this basis.
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The
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The law of triad was given by Dobereiner.
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Mendeleev’s periodic law was based on the atomic masses of the elements.
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Law of octaves was given by Newlands.
Therefore, Option(3) is correct
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