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In the classificatioin of the then known...

In the classificatioin of the then known elements, Mendeleev was guided by two factors. What are those two factors?

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LAKHMIR SINGH & MANJIT KAUR-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise
  1. X and Y are the two elements having similar properties which obey Newl...

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  2. What was the Mendeleev's basis of the classification of elements.?

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  3. In the classificatioin of the then known elements, Mendeleev was guide...

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  4. Name two elements whose properties were predicted on the basis of thei...

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  5. The three elements predicted by Mendeleev from the gaps in his periodi...

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  6. Name two elements whose properties were predicted on the basis of thei...

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  7. A,B and C are the elements of a Deobereiner's triad. If th atomic mass...

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  8. Which group of elements could be placed in mendeleev's periodic table ...

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  9. Fill in the following blanks with suitable words: (a) The basis for...

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  10. (a) What is meant by (i) a group and (ii) a period in a periodic table...

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  11. NEWLAND'S LAW OF OCTAVES

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  12. (a) State the merits of Mendeleev's classification of elements. (b) ...

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  13. (a) How do the properties of eka-aluminium element predicted by Mendel...

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  14. (a) Why do we classify elements? (b) What were the two criteria used...

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  15. In Mendeleev's periodic table gap was not left for one of the followin...

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  16. The Newlands' law of octaves for the classification of elements was fo...

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  17. According to Mendeleev' periodic law, the elements were arranged in th...

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  18. Three elements B, Si and Ge are :

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  19. In Mendeleev's periodic table, gaps were left for the elements to be d...

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  20. The three imaginary elements X,Y and Z represent a Döbereiner's triads...

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