12 Nov 2021
Problem 18
Page 336
Section: Problems by Topic
Chapter 8: Periodic Properties of the Elements
Textbook ExpertVerified Tutor
12 Nov 2021
Given information
Here the given elements are:
S, Mg, Al, Si
We have to determine the decreasing order of effective nuclear charge felt by the valence electrons of the given elements.
Step-by-step explanation
Step 1.
The term effective nuclear charge indicates the reduced nuclear charge which is effectively experienced by an electron in an atom, on account of the shielding effect due to other electrons.
The expression that is used to calculate the effective nuclear charge (Zeff) can be given as:
Here in the equation, 'Z' indicates the atomic number which represents the number of protons and 'S' indicates the shielded electrons.
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