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Which of the following has largest radiu...

Which of the following has largest radius :

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) , 3p^(3)`

D

`1s^(2) , 2s^(2) , 2p^(6) , 3s^(2) , 3p^(5)`

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The correct Answer is:
A
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MOTION-PERIODIC TABLE -Exercise - 1
  1. In the ions P^(3-),S^(2-) and Cl, the increasing order of size is:

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  2. Atomic radil of fluorine and neon in Angstrom units are respectively ...

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  3. Which of the following has largest radius :

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  4. Arrange the following in increasing order of their atomic radius: Na, ...

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  5. Which of the following sequences is correct for decreasing order of io...

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  6. The order of size is :

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  7. Arrange the following in order of increasing atomic radii Na, Si, Al, ...

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  8. Consider the isoelectronic series , K^(o+), S^(2-), Cl^(ɵ), Ca^(2+), t...

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  9. Which of the following is not isoelectronic series?

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  10. In the isoelectronic species the ionic radii (Å ) of N^(3-) , Ne and A...

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  11. Correct order of IE(1) are: (P) Li lt B lt Be lt C (Q) O lt N lt F ...

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  12. The maximum tendency to form unipositive ion is for the elment with th...

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  13. The second ionisation potentials in electron volts of oxygen and fluor...

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

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  15. The correct order of stability of Al^(+) , Al^(+2) , Al^(+3) is :

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  16. The ionization energy of sodium is 495 kJ mol^(-1). How much energy is...

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  17. Ionisation energy increases in the order :

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  18. Mg forms Mg(II) because of :

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  19. IE(1) and IE(2) of Mg are 178 and 348 kcal mol^(-1). The energy requir...

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  20. Highest ionisation potential in a period is shown by

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