Periodic TableEasy
Question
The statement that is not correct for the periodic classification of elements, is :
Options
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 ionization energies of elergies of elements along a period do not vary in a regular manner with increase in atomic number
D.For transition elements monotonically with increase in atomic number
Solution
(a) is statement of Moseley periodic law. (b) is a fact (c) is also a fact and is consequence of ENC and shielding effect. Only (d) is incorrect because exceptions are seen with 29Cr and 29Cu.
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