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The properties of the following elements...

The properties of the following elements were predicted by Mendeleeff before their isolation are

A

`Co` and `Ni`

B

`I` and `Te`

C

`Sc, Ga` and `Ge`

D

`Cl, Ar` and `K`

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The correct Answer is:
C
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NARAYNA-PERIODIC TABLE -All Questions
  1. In Mendeleef table, the triad of VIII group is

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  2. Number of short periods in Mendeleef table

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  3. The properties of the following elements were predicted by Mendeleeff ...

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  4. The number of elements known when Mendeleef presented periodic table i...

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  5. The element 'Sc' is known long back as

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  6. Which of the following is not an anamalous pair?

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  7. The number of periods in the long from of periodic table is

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  8. The total number of gaseous elements are

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  9. Which of the following remains unchanged in descending in a group in t...

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  10. In a period, elements are arranged in strict sequence of

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  11. Which of the following is not a representative element

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  12. The inert gas present in the second long period is

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  13. Mono atomic element among the following is

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  14. Which one of the following pairs of atomic numbers, represents element...

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  15. The atomic number of elements of second inner transition elements lie ...

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  16. The atomic number of elements of first transition series lie in the ra...

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  17. In the long form of periodic all non-metals are placed in

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  18. All elements of the same group will have

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  19. The atomic number of an element is always equal to

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  20. Which of the following is not the electronic configuration of a repres...

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