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What was the first detailed classification of elements proposed by Mendeleev and Meyer based on?
What was the first detailed classification of elements proposed by Mendeleev and Meyer based on?
the increasing order of their atomic weights
Who made the first attempt to systematize the study of properties of elements and gave the Dobereiners law of triads?
Who made the first attempt to systematize the study of properties of elements and gave the Dobereiners law of triads?
Johann Dobereiner
Who proposed the modern periodic law, in which the elements are arranged in the order of increasing atomic numbers?
Who proposed the modern periodic law, in which the elements are arranged in the order of increasing atomic numbers?
Henry Moseley
What were the two laws that preceded the Mendeleev’s periodic table?
What were the two laws that preceded the Mendeleev’s periodic table?
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What did Mendeleev's periodic table have, which were later addressed?
What did Mendeleev's periodic table have, which were later addressed?
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Who made the first attempt to systematise the study of properties of elements and gave the Dobereiners law of triads?
Who made the first attempt to systematise the study of properties of elements and gave the Dobereiners law of triads?
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When was the first detailed classification of elements proposed, and by whom?
When was the first detailed classification of elements proposed, and by whom?
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What was the first law of classification of elements proposed by Johann Dobereiner?
What was the first law of classification of elements proposed by Johann Dobereiner?
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What was the first law of classification of elements proposed by John Newlands?
What was the first law of classification of elements proposed by John Newlands?
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Who proposed the modern periodic law, in which the elements are arranged in the order of increasing atomic numbers?
Who proposed the modern periodic law, in which the elements are arranged in the order of increasing atomic numbers?
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Who made the first attempt to systematise the study of properties of elements and gave the Dobereiners law of triads?
Who made the first attempt to systematise the study of properties of elements and gave the Dobereiners law of triads?
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When did the German chemist Johann Dobereiner make the first attempt to systematise the study of properties of elements and gave the Dobereiners law of triads?
When did the German chemist Johann Dobereiner make the first attempt to systematise the study of properties of elements and gave the Dobereiners law of triads?
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Who proposed the first detailed classification of elements, and when?
Who proposed the first detailed classification of elements, and when?
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What was the first detailed classification of elements proposed based on?
What was the first detailed classification of elements proposed based on?
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Who proposed the modern periodic law, and what was it based on?
Who proposed the modern periodic law, and what was it based on?
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