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If Aufbau rule is not followed, K - 19. ...

If Aufbau rule is not followed, K - 19. will be placed in

A

s

B

p

C

d

D

f

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The correct Answer is:
C
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AAKASH SERIES-PERIODIC TABLE-OBJECTIVE EXERCISE -3
  1. (IE)1 and (IE)2 of Mg((g)) are 740, 1540 kJ mol^(-1) . Calculate perce...

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  2. Use (IE) and (EA) listed below to determine whether the following proc...

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  3. If Aufbau rule is not followed, K - 19. will be placed in

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  4. M((g)) to M((g))^(+) + e^(-) , DeltaH=100 eV , M((g)) to M((g))^(2+) +...

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  5. Which of the following atomic number is named as Ununtrium.

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  6. The IUPAC name of ""(104)Rf is

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  7. The IUPAC name of ""(107)Bh is

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  8. Screening constant depends upon A) Number of inner shells B) Numbe...

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  9. Screening constant of Be is 2.05 and that of B is

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  10. Write any two properties which are decreased from top to bott...

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  11. Screening by inner electrons will be more effective in

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  12. Correct order of first ionisation potentials

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  13. In a period from left to right A) nuclear charge increases B) eff...

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  14. Relation between oxidation numbers and electronegativity is given by

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  15. Screening effect influences A) atomic radius B) Ionisation enthal...

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  16. {0} is a set contains the element……..

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  17. Number of unpaired electrons in Gd(Z =64) and the net electrons spin a...

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  18. For the process X((g)) + e^(-) rarr X((g))^(-), Delta H =x and X(g)^...

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  19. Some statements are given regarding nature of oxides (i) In second ...

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  20. When an electron adds on F atom, It becomes

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