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In Mendeleev's periodic table, gaps were...

In Mendeleev's periodic table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later ?

A

Germanium

B

Chlorine

C

Oxygen

D

Silicon

Text Solution

Verified by Experts

The correct Answer is:
A
Explanation : Many gaps for the undiscovered elements were left in the periodic table by Mendeleev. For instance, the elements scandium (Sc), gallium (Ga), and germanium (Ge) were not known at Mendeleev.s time, but he had predicted their existence in advance of their discovery.
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OSWAL PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -NCERT EXEMPLAR (MULTIPLE CHOICE QUESTIONS)
  1. Upto which element, the law of octaves was found to be applicable ?

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

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

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  4. Which of the following statements (s) about the modern periodic table ...

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  5. Which of the following statements about the Modern Periodic Table is C...

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  6. Which of the given elements A,B,C,D and E with atomic number 2,3,7,10 ...

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  7. The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 ...

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  8. Where would you locate the element with electronic configuration 2, 8 ...

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  9. An element which is an essential constituent of all organic compounds ...

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  10. Which of the following is the outermost shell for elements of period 2...

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  11. Which one of the following elements exhibit maximum number of valence ...

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  12. Which of the following gives the correct increasing order of the atomi...

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  13. Which among the following elements has the largest atomic radii ?

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  14. Which of the following elements would lose an electron easily ?

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  15. Which of the following elements does not lose an electron easily ?

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  16. Which of the following are the characteristics of isotopes of an eleme...

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  17. Arrange the following elements in the order of their decreasing metall...

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  18. Arrange the following elements in the order of their increasing non-me...

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  19. What type of oxide would Eka- aluminium form?

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  20. Three elements B, Si and Ge are

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