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Which of the following atom has the lowe...

Which of the following atom has the lowest ionization enthalpy?

A

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

B

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

C

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

D

`1s^(2)2s^(2)2p^(5)`

Text Solution

Verified by Experts

The correct Answer is:
b
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SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ADDITIONAL CHOOSE THE CORRECT ANSWER
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  2. The radii of F, F^(-) , O andO^(2-) are in the order

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  3. Which of the following atom has the lowest ionization enthalpy?

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  4. Which of the following has the highest positive electron gain enthalpy...

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  5. Which of the following statements is incorrect ?

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  6. Correct order of 1st ionization potential among elements Be,B,C,N,O is

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  7. The most electronegative element of the periodic table is

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  8. Assertion (A) : The first ionization energy of Al is lower than Mg. ...

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  9. Ionic radii are

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  10. Which of the following sets contain only isoelectionic ions?

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  11. With repect to chlorine ,hydrogen will be

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  12. Which orbital diagram gives an insight to the highest ionization ene...

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  13. Among the elements given below has the highest value of electronegativ...

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  14. Pick the incorrect statement about the factors affecting ionization en...

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  15. Statements I : Noble gases have zero electron gain enthlpy. Statem...

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  16. The relative tendency of a bonded atom in a molecule to attract the sh...

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  17. Which of the following property has no unit ?

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  18. In a group with decrease in electronegativity the metallic character ...

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  19. Which of the following processes involves absorption of energy?

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  20. Which set of elements shows positive electron gain enthapy?

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