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Which of the following sequences contain...

Which of the following sequences contain atomic numbers of only representative elements ?

A

3,53, 33,87

B

21,33,54,83

C

22,23,66.54

D

3,13,48,53

Text Solution

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The correct Answer is:
A
The atomic number only representative elements are 3,33,53, 87
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DINESH PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-All Questions
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  2. Which of the following pairs show diagonal relationship?

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  3. Which of the following sequences contain atomic numbers of only repres...

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  4. What is true about iso-electronic ions ?

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  6. Which of the following belongs to d-block?

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  7. Pd has exceptional valence shell electronic configuration of 4d^(10)5s...

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  8. An element X has IE and EA respectively 275 and 1450 kJ mol^(-1). The ...

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  9. The van der Waal's radii of O,N,CI,F and Ne increase in the order

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  10. The outer shell configuration and group number of the element with ato...

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  11. Which of the following pair contains species having nearly same charge...

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  12. According to IUPAC norms an element has been named as Uun. The atomic ...

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  13. Which of the following ion will form most water soluble hydroxide?

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  14. Which of the following has greatest tendency to lose electron ?

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  15. With which of the following configuration the lowest value of first IE...

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  16. Which of the following configuration is associated with biggest jump b...

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  17. Which of the following does not reflect periodicity of elements ?

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  18. In the long form of the periodic table, the transition metals are plac...

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  19. Which of the following metal requires radiation of highest frequency t...

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  20. Which of the following ions is smallest in size ?

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