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Mendeleev's arranged the then known elem...

Mendeleev's arranged the then known elements in horizontal rows and vertical columns of a table in the order of their increasong_________in such a way that the elements with similar properties occupied the same vertical column or group.

A

atomic density

B

atomic volume

C

atomic number

D

atomic mass

Text Solution

Verified by Experts

The correct Answer is:
D
According to mendeleev's periodic law, if the elements are arranged sequentially in the order of increasing atomic mass, a periodic repetition in properties is observed.
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Why do elements with similar properties occur in the same group?

Assertion (A): Mendeleev arranged element in horizontal rows and vertical columns. Reason (R): Mendeleev ignored the order of atomic weight thinking that the atomic measurements might be incorrect.

R SHARMA-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS-Follow-up Test
  1. When Mendeleev started his work on periodic classification of elements...

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  2. The formula of the hydrides and oxides formed by the various elements ...

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  3. Mendeleev's arranged the then known elements in horizontal rows and ve...

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  4. Mebdeleev's classification was a great improvement over contemporary t...

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  5. Which of the following elements were not known when Mendeleev publishe...

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  6. In Mendelev's modified periodic table, there arevertical column called...

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  7. In Mendeleev's periodic table group VIII containselements.

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  8. In Mendeleev's original periodic table, there were six horixontal rows...

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  9. Mendeleev's periodic table simplified and systematized the study of th...

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  10. One especially farishted feature of Mendeleev's accomplishment was his...

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  11. Mendeleev's propdicted the properties of unknown elements.

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  12. Mebdeleev's periodic table has helped in correcting the doubtful atomi...

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  13. The position of hydrogen in Mendeleev's periodic table is not fixed bu...

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  14. In Mendeleev's table, although most of the elements were placed in the...

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  15. Since its birth in 1869, the Mendeleev periodic table has been discuss...

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  16. The empirical evolution of the periodic table reached its peak in 1913...

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  17. Which of the following gives a straight line?

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  18. Which of the following correctely describes Moseley's law?

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  19. Moden periodic law states that the properties of the elements are peri...

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  20. The physical and chemical properties of the elements denpend upton the...

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