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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`

Text Solution

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The correct Answer is:
A
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PATHFINDER-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
  1. The correct order of size would be

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  2. Atomic radii of fluorine and Neon in Angstrom units are given by

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  3. Which of the following has largest radius

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  4. Arrange the elements in increasing order of atomic radius Na , Rb , K ...

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  5. Consider the isoelectronic series: K^+ , S^(2-) , Cl^- andCa^(2+) the ...

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  6. Highest size will be of

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  7. Ionization potential of Na would be numerically the same as

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  8. The IP1 , IP2 , IP3 , IP4 and IP5 of an element are 7.1 , 14.3 , 34.5 ...

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  9. The screening effect of d-electrons is

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  10. Correct orders of IE1 are (i) Li lt B lt Be lt C (ii) O lt N lt F ...

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  11. The maximum tendency to form unlpositive ion is for the element with t...

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

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  13. A sudden large jump between the values of 2nd and 3rd IP of an element...

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  14. The ionization energy of sodium is 495 kJmol^(-1) How much energy is n...

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  15. IP1 and IP2 of Mg are 178 and 348 K cal mol^(-1). The enthalpy require...

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  16. The correct order of second I.P.

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  17. In which case the energy released in minimum

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  18. Second electron affinity of an element is

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  19. The electron affinity values for the halogens shown the following tren...

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  20. Electron affinities of O , F, S , and Cl are in the order

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