Home
Class 12
CHEMISTRY
The statement that is not correct for pe...

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

A

the properties of elements 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

for transition elements the `d-` subshells are filled with electrons monotonically with increase in atomic number.

Text Solution

Verified by Experts

The correct Answer is:
4
The `d-` sub shells are not filled with electrons monotonically with increase in atomic number. There are some exceptions like `Cr,Cu ` etc.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • TEST PAPERS

    RESONANCE ENGLISH|Exercise PT-03|28 Videos

  • TEST PAPERS

    RESONANCE ENGLISH|Exercise PT-04|30 Videos

  • TEST PAPERS

    RESONANCE ENGLISH|Exercise PT-01|30 Videos

  • SURFACE CHEMISTRY

    RESONANCE ENGLISH|Exercise Section - 5|1 Videos

  • TEST SERIES

    RESONANCE ENGLISH|Exercise CHEMISTRY|50 Videos

Similar Questions

Explore conceptually related problems

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

What is the importance of periodic classification of elements?

Knowledge Check

  • Which of the following statements is not correct for the periodic classification of elements?

    A
    The properties of elements are the periodic functions of their atomic number.
    B
    Non-merallic elements are less in number than merallic elements.
    C
    For transition elements,the last electro entres into(n-2)d-subshell.
    D
    None of these

    • Similar Questions

    Explore conceptually related problems

    State modern periodic law of classification of elements.

    Classification of essential elements is :

    Which of the following statement is not correct for criteria for essentiality of an element ?

    The correct classification of myxine is

    State the merits of Mendeleev's classification of elements.

    What is the need for classification of elements ?

    Correct sequence of classification of Homo erectus is :-

    Home
    Profile