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The screening effect of inner electrons ...

The screening effect of inner electrons of an atom can cause

A

decreases in the ionization energy

B

increases in the ionization energy

C

no effect on the ionization energy

D

increases the attraction of the nucleus for the electrons

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The correct Answer is:
A
Higher the screening effect, lower is the I.E.
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The energy required to pull the most loosely bound electrons from an atom is known as ionization potential. It is expressed in electron volts. The value of ionization potential depends on three factors :(i) the charge on the nucleus (ii) the atomic radius and (iii) the screening effect of inner electron shells. Ionization potential of Na would be numerically the same as

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DISHA PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-Exercise -1 :Concept Builder (Topic 2)
  1. Which of the following transitions involves maximum amount of energy?

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  2. Ionisation energy decreases down the group due to

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  3. Which one has least ionisation potential?

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  4. Na^(+), Mg^(2+), Al^(3+), and Si^(4+) are isoelectronic ions. Their io...

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  5. Ionic radii are

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  6. Which one of the following ions has the highest value of ionic radius?

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

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  8. The screening effect of inner electrons of an atom can cause

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  9. The second ionization potential of elements is invariably higher than ...

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  10. The pair of elements having approximately equal ionisation potential i...

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  11. Which of the following option is incorrect with respect to ionic radii...

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  12. Which of the following element has maximum, first ionisation potential...

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  13. The radii of F,F^(-),O and O^(-2) are in the order of

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  14. Which of the following has same size?

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  15. The correct decreasing order of first ionisation enthalpies of five el...

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  16. The correct order of second ionisation potential of C, N, O and F is:

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  17. Which of the following arrangements represents the increasing order (s...

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  18. The atomic sizes are not significantly different for the series of ele...

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  19. The correct order of the ionic radii of the ions is

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  20. The decreasing order of the ionization potential of the following elem...

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