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Which of the following sequence contains...

Which of the following sequence contains atomic number of only representative elements ?

A

55, 12, 48, 53

B

13, 33 ,45, 83

C

3, 33, 53, 87

D

22, 33, 55, 66

Text Solution

Verified by Experts

The correct Answer is:
C
Representative elements `rArr` elements of s & p block. Write electronic configuration & if last goes `e^(-)` in s/p orbital. It is a representative element.
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VMC MODULES ENGLISH-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -LEVEL -2
  1. Ionisation enthalpy of Na would be same as

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  2. Which of the following have no unit?

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  3. Which of the following sequence contains atomic number of only represe...

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  4. Match the various sequences with the appropriate orders :

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  5. A neutral atom (Ar) is converted to (Ar^(2+) ) by the following pr...

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  6. The energy required to pull the most loosely bound electron form an at...

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  7. The energy required to pull the most loosely bound electron form an at...

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  8. Select which is correct representation for diagonal relationships in p...

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  9. Consider the following reaction: (i) O((g))+e^(-) to O((g))^(-),Delt...

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  10. What is the atomic number of the element with the maximum number of u...

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  11. O(g) + 2e^(-) to O^(2-)(g) , DeltaH(eg) = 744.7 kJ/mole . The positive...

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  12. Consider the order O^(2-) lt F^(+) lt Na^(+) lt Mg^(3+). Then correct ...

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  13. How do the energy gaps between successive electron energy levels in an...

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  14. Which of the following properties of the alkaline earth metals increas...

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  15. What would be the atomic number of the last member of the halogen grou...

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  16. Which of the following process requires the largest amount of energy ?

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  17. In which of the following pair, both the species are isoelectronic but...

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  18. The correct order of ionic size of N^(3-), Na^(+), F^(-), Mg^(2+) and ...

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  19. Which of the following statements are correct?

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  20. Which of the following is the wrong statement?

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