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The statement that is not correct for pe...

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

A

the properties of element are the periodic functions of their atomic numbers

B

non-metallic elements are lesser in number than metallic elements

C

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

D

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

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The d-subshells are not filled monotonically. The regular trend is broken by Cr and Cu.
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VMC MODULES ENGLISH-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -JEE ADVANCE (ARCHIVE)
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  2. The first ionisation enthalpies of Na, Mg , Al and Si are the order

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  3. Which of the following statements is/are true for the long form of the...

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  4. The first ionisation potential (in electron volts) of nitrogen and oxy...

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  5. Which one of the following is the smallest in size?

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  6. Why the first ionisation energy of carbon atom is greater than that of...

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  7. Amongst the element with following electronic configurations, which on...

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  8. Arrange the following as stated: Increasing order of ionic size N^(3...

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  9. The statement that is not correct for periodic classification of eleme...

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  10. Ca^(2+) the first ionisation energies of elements along a period do no...

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  11. The basic nature of the hydroxides of group 13 decreases progressively...

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  12. The correct order of increasing electron affinity of halogens is

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  13. Which of the following has the maximum number of unpaired electrons?

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  14. Compounds that formally contain Pb^(4+) are easily reduced to Pb^(+2) ...

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  15. The incorrect statement among the following is

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  16. Assertion: F atom has less negative electron gain enthaply than Cl ato...

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  17. Ionic radii of

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  18. Statement I : The first ionisation energy of Be is greater than that o...

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  19. The set representing the correct order of the first ionisation potenti...

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  20. Assertion (A) : Pb^(+4) compounds are stronger oxidiising agents than...

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