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Questions and Answers
Which law states that the properties of elements are a periodic function of their atomic masses?
Which law states that the properties of elements are a periodic function of their atomic masses?
According to Mendeleev, what are the vertical columns in the periodic table called?
According to Mendeleev, what are the vertical columns in the periodic table called?
Which element is assigned an atomic mass of 19 in Mendeleev's Periodic Table?
Which element is assigned an atomic mass of 19 in Mendeleev's Periodic Table?
In Mendeleev's Periodic Table, which group does Titanium (Ti) belong to?
In Mendeleev's Periodic Table, which group does Titanium (Ti) belong to?
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Dobereiner's Triads were based on grouping elements with similar properties into sets of how many elements?
Dobereiner's Triads were based on grouping elements with similar properties into sets of how many elements?
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What was the main basis for Newlands' Law of Octaves?
What was the main basis for Newlands' Law of Octaves?
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In which law were the elements found to be applicable only up to calcium?
In which law were the elements found to be applicable only up to calcium?
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How many elements did Newlands fit in his table of 7 X 8, which is 56 boxes?
How many elements did Newlands fit in his table of 7 X 8, which is 56 boxes?
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Why did Newlands place some elements with different properties under the same note in the octave?
Why did Newlands place some elements with different properties under the same note in the octave?
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According to Mendeleev, what was considered the fundamental property of elements for classification?
According to Mendeleev, what was considered the fundamental property of elements for classification?
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Why did Mendeleev arrange the elements in his periodic table based on atomic mass?
Why did Mendeleev arrange the elements in his periodic table based on atomic mass?
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What was a limitation of Newlands’ octaves when newly discovered elements emerged?
What was a limitation of Newlands’ octaves when newly discovered elements emerged?
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What method did Dmitri Mendeleev use to arrange the elements in his periodic table?
What method did Dmitri Mendeleev use to arrange the elements in his periodic table?
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Why did Mendeleev leave gaps in his periodic table for some elements?
Why did Mendeleev leave gaps in his periodic table for some elements?
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Which characteristic of science is exemplified by Mendeleev revising the atomic masses of some elements?
Which characteristic of science is exemplified by Mendeleev revising the atomic masses of some elements?
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In Mendeleev's periodic table, what does a question mark before an element symbol indicate?
In Mendeleev's periodic table, what does a question mark before an element symbol indicate?
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How did Mendeleev demonstrate the periodicity of elements using his periodic table?
How did Mendeleev demonstrate the periodicity of elements using his periodic table?
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What was the basis for Mendeleev revising atomic masses to give elements their proper place on the periodic table?
What was the basis for Mendeleev revising atomic masses to give elements their proper place on the periodic table?
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