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The empirical evolution of the periodic ...

The empirical evolution of the periodic table reached its peak in `1913` when the English physicist ______showed that atomic number is a more fundamental property of an element than its atomic mass.

A

Winkler

B

Nilson

C

Peter

D

Moseley

Text Solution

Verified by Experts

The correct Answer is:
D
In `1913`, the English physicist oberved regularities in the characteristic `X`-ray spectra of the elements and justified through their atomic numbers.
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R SHARMA-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS-Follow-up Test
  1. In Mendeleev's table, although most of the elements were placed in the...

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

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

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  4. Which of the following gives a straight line?

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

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

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

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  8. The cause of periodicity in properties of the elements is the repetiti...

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  9. Which of the following numbers are called magic numbers?

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  10. The short form of the modern periodic table of the elements (also call...

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  11. In the modified Mendeleev's periodic table, the 18 vertical columns we...

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  12. In the short form of the modern periodic table, the period number corr...

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  13. In the short form of the modern periodic table, the first period conta...

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  14. In the short from of the modern periodic table,elements of both sixth ...

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  15. The naming of the new elements had been traditionally the privilege of...

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  16. Unnilennium is the systematic name for element having atomic number

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  17. Which of the following elements have been duly synthesized and officia...

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  18. What would be the IUPAC name and symbol for the element with atomic nu...

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  19. Total number of element in each period is twice the number ofbeing fil...

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  20. The first period (n = 1) starts with the filling ofsubshell.

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