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The first ionisation potential of calciu...

The first ionisation potential of calcium is greatyer than that of potassium because for calcium

A

the effective nuclear charge is higher

B

the electron is removed from s-subshell

C

the electron is removed from a circular subshell

D

the removal of electron does not give noble gas configuration.

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The correct Answer is:
A
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DINESH PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-All Questions
  1. The pair in which the ionisation energy of first species is less than ...

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  2. Arrange S, P and As in order of increasing ionisation energy.

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  3. The first ionisation potential of calcium is greatyer than that of pot...

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  4. The increasing order of ionisation energy among sulphur, phosphorous a...

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  5. Which of the following does not affect the ionisation potential of the...

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  6. Which of the following process refers to ionisation potential ?

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  7. r("(van der Waal)") is

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  8. The correct order of the size of C, N, P, S following the order:

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  9. Which of the following has smallest size ?

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  10. Which of the following units are used frequently for atomic radii ?

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  11. The size of the species Cl,Cl^(-) and Cl^(+) decreases as

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  12. The ions which are arranged in correct order of increasing radii are

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  13. Which out of the following has the largest size ?

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  14. The correct arragement of O,P and N in order of increasing radii is

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  15. Covalent radius of Liis 123 pm .The crystal radius of Li will be:

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  16. The ionic species having largest size is

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  17. The size of the following species increases in the order

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  18. Which of the following represents the incorrect order of ionic radii ?

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  19. The size of species I, I^(+) and I^(ɵ) decrease in the order.

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  20. The correct decreasing order of ionic size among the following species...

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