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The statement that is not correct for th...

The statement that is not correct for the periodic classification of elements is

A

The properties of elements are a periodic function of their atomic numbers

B

Non-metallic elements are less in number than metallic elements

C

The first ionization energies of elements along a period do not vary in a regular manner with increase in atomic number

D

For transition elements, the d-subshells are filled with electrons monotonically with increase in atomic number

Text Solution

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The correct Answer is:
D
For transition elements, the d-subshells are filled with electrons monotonically with increase in atomic number
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BRILLIANT PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTIONS (LEVEL-II)
  1. The statement that is not correct for the periodic classification of e...

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  2. Amongst the following elements (where electronic configurations are gi...

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  3. The electron affinities of halogens are: F=332, CI =439, Br=324, I=295...

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  4. The IP(1), IP(2), IP(3), IP(4), and IP(5), of an element are 7.1, 14.3...

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  5. Calculate the energy needed to convert three moles of sodium atoms in ...

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  6. Which is correct in the following?

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  7. The formation of the oxide ion O^(2-) (g) requires first an exothermic...

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  8. The correct order of increasing ionic character is

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  9. Ionisation potential and electron affinity of fluorine are 17.42 and 3...

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  10. The graph of IE1 or Deltai H1^Theta versus atomic number (Z) is giv...

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  11. Elements a, b, c, d and e have the following electronic configuration ...

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  12. Which of the following order is wrong?

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  13. General electronic configuration of outermost and penultimate shell of...

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  14. An element X belongs to fourth period and fifteenth group of the perio...

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  15. The correct order of decreasing first ionization energy is:

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  16. Similarity in chemical properties of the atoms of elements in a group ...

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  17. In the long form of the periodic table, the valence shell electronic c...

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  18. In which of the following sets of atomic numbers, all the elements do ...

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  19. Which of the following element is just below in the E.C. of [Ne]3s^(2)...

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  20. Chloride of an element A gives neutral solution in water. In the perio...

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