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Which of the following can most easily f...

Which of the following can most easily form unipositive gaseous ion?

A

`1s^(2)2s^(2)2p^(6)3s^(2)`

B

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(1)`

C

`1s^(2)2s^(2)2p^(6)3s^(2)`

D

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
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NCERT FINGERTIPS-CLASSIFICATION OF ELEMENTS AND PERIODICITY -Periodic Trends In Properties Of Elements
  1. The ionisation energy of nitrogen is more than that of oxygen because

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  2. which of the following elements has the highest value of second ioniza...

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  3. Which of the following can most easily form unipositive gaseous ion?

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  4. Amongst the metal Be, Mg, Ca and Sr of group 2 of the periodic table, ...

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  5. Beryllium has higher ionisation enthalpy than boron.This can be explai...

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  6. A sudden large jump between the values of second and third ionisation ...

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

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

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  9. Ionization enthalpies of transition metals are

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

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

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

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

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

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  15. Which of the following have least electron affinity?

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

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

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

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

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

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