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Which electron is, on average, closer to the nucleus: an elec­tron in a 2s orbital or an

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 45P Chapter 9

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 45P

PROBLEM 45P

Which electron is, on average, closer to the nucleus: an elec­tron in a 2s orbital or an electron in a 3s orbital?

Step-by-Step Solution:

Solution 45P

Step 1:

In order to answer this question, we need to be clear about the concept of ‘penetration of the orbitals towards the nucleus.

Penetration describes the proximity to which an electron can approach to the nucleus.

And for different values of shell (n) and sub shell (l), penetrating power of an electron follows this trend:

 

1s>2s>2p>3s>3p>4s>3d>4p>5s>4d>5p>6s>4f....

Orbitals which are close to nucleus experience greater attraction and have lesser energy.

 

Step 2 of 2

Chapter 9, Problem 45P is Solved
Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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Which electron is, on average, closer to the nucleus: an elec­tron in a 2s orbital or an