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Chemistry | 11th Edition | ISBN: 9780073402680 | Authors: Raymond Chang
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What is meant by the term "shielding of electrons" in an

Chapter 7, Problem 74P

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QUESTION:

What is meant by the term "shielding of electrons" in an atom? Using the Li atom as an example, describe the effect of shielding on the energy of electrons in an atom.

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QUESTION:

What is meant by the term "shielding of electrons" in an atom? Using the Li atom as an example, describe the effect of shielding on the energy of electrons in an atom.

ANSWER:

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Here we have to explain what is meant by the term "shielding of electrons" in an atom. Using the Li atom as an example, describe the effect of shielding on the energy of electrons in an atom.

The electrons present in the energy levels between the nucleus and the valence electrons are called as shielding electrons. These are called shielding electrons because they shield the valence electrons from the force of attraction exerted by the positive charge in the nucleus. This shielding effect reduces the electrostatic attraction between protons in the nucleus and the electron in the 2s or 2p orbital.

 

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