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Chemistry
Which statement(s) is (are) false for the periodic classification of elements?
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Q. Which statement(s) is (are) false for the periodic classification of elements?
KEAM
KEAM 2018
Some Basic Concepts of Chemistry
A
The properties of the elements are the periodic functions of their atomic numbers
5%
B
Non-metallic elements are lesser in number than the metallic elements
5%
C
The first ionization energies of the elements along a period do not vary in a regular manner with increase in atomic number
11%
D
For transition elements, the d-electrons are filled monotonically with increase in atomic number
37%
E
Both (C) and (D)
37%
Solution:
The option ( d) is false as $d$ -electrons do not filled monotonically with the increase in atomic number.