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Few elements are matched with their succ...

Few elements are matched with their successive ionisation energies,Identify the elements.

A

X-A noble gas ,Y-Alkali metal,Z-Alkaline earth metal

B

X-Alkali metal,Y-A noble gas,Z-Alkaline earth metal

C

X-Alkaline earth metal,Y-Alkali metal,Z-A noble gas

D

X-Alkali metal,Y-Alkaline earth metal,Z-A noble gas

Text Solution

Verified by Experts

The correct Answer is:
A
X has highest `IE_(1)` and `IE_(2)` hence,it is a noble gas Y has low `IE_(1)`but very high `IE_(2)` hence,it is an alkali metal.Z has low `IE_(1)`than `IE_(2)` and `IE_(2)` is even lower than `IE_(2)` of alkali metal hence,it is an alkaline earth metal.
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NCERT FINGERTIPS ENGLISH-CLASSIFICATION OF ELEMENTS AND PERIODICITY -Periodic Trends In Properties Of Elements
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  2. A sudden large jump between the values of second and third ionisation ...

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  3. Few elements are matched with their successive ionisation energies,Ide...

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  4. First and second ionisation enthalpies(in KJ/mol) of few elements are ...

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  5. Ionization enthalpies of transition metals are

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  6. Consider these electronic configurations for neutral atoms: (i) 1s^(...

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  7. Which of the following element will have highest ionization energy?

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  8. Few values of enthalpies are given below: O=-141 KJ mol^(-1) F=-328 KJ...

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  9. In the given graph,a periodic property (R) is plotted against atomic n...

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  10. Which is correct increasing order of their tendency of the given eleme...

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  11. Which of the following have least electron affinity?

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  12. Which one of the following arrangements represents the correct order o...

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  13. Which of the following statements is not correct about the electron ga...

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  14. Why is the electron gain enthalpy of O or F less than that of S or Cl?

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  15. Which of the following statements regarding an anion is not true?

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  16. Which of the following properties of isotopes of an element is differe...

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  17. Given below are the names of few elements based on their position in t...

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  18. Which of the following noble gases has the maximum positive electron g...

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  19. An atom with high electronegativity has

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  20. Study the given diagram of the periodic table and fill the blanks with...

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