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What were the limitations of Newlands' l...

What were the limitations of Newlands' law of Octaves ?

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a) Newlands. law of octaves could be applied only till calcium. After calcium, every 8th element did not possess the properties of the Ist. Thus, the law of octaves failed for elements with higher atomic masses.
b) Newlands assumed that only 56 elements existed and left no blank space for possible elements that could be discovered later.
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ZEN PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ZEE ADDITIONAL QUESTIONS SECTIONS (SHORT ANSWER (SA) TYPE QUESTIONS)
  1. Why did the law of triads fail?

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  2. Mention the merits of Newlands' law of octaves.

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  3. What were the limitations of Newlands' law of Octaves ?

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  4. Why do all elements of the same group have similar properties?

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  5. The atomic numbers of three elements A, B, and Care 12, 18, and 20 res...

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  6. Taking the example of an element of atomic number 16, explain how the ...

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  7. The electronic configuration of an element 'X' is 2, 8, 8, 2. To which...

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  8. All the members of group I are metals. Li and Na react with water rapi...

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  9. Atomic number is considered to be a more appropriate parameter than at...

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  10. How does the electronegativity changes as we move from left to right a...

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  11. How would the tendency to gain electrons change as you go from left to...

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  12. a) How does electropositivity of elements get affected as we move: (i)...

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  13. Why are metals electropositive and non-metals electronegative in natur...

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  14. Name three elements with seven valence electrons in their outermost sh...

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  15. Inert gases are placed in a separate group in the Modern Periodic Tabl...

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  16. a] What are metalloids? Write any two examples. b] Given below are s...

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  17. a] Write the trend of atomic size and metallic character along a group...

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  18. a] Name the element with atomic number 17.   b]To which period does i...

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  19. Draw a part of the long form of the periodic table showing a non-metal...

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  20. (i) Predict which of the following elements will form cation and will ...

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