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Choose the element with the higher ionization energy from

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

Solution for problem 78P 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 78P

PROBLEM 78P

Choose the element with the higher ionization energy from each pair.

(a) Al or In

(b) Cl or Sb

(c) K or Ge

(d) S or Se

Step-by-Step Solution:

Solution 78P

Here, we are going to identify the element with higher ionization energy from each pair.

Step 1:

Ionization energy represents the energy required to remove an electron from an isolated gaseous atom in its ground state.

As we move from left to right across a period, the ionization energy increases. This is because, as we move across a period, successive electrons are added to orbitals in the same energy level and the shielding of the nuclear charge by the inner core of electrons does not increase very much to compensate for the increased attraction of the electron to the nucleus. Thus, across a period, increasing nuclear charge outweighs the shielding. Consequently, the outermost electrons are held more and more tightly and the ionization energy increases.

On the other hand, as we move down a group, the outermost electron being increasingly farther from the nucleus, there is an increased shielding of the nuclear charge by the electrons in the inner levels. In this case, increase in shielding outweighs the increasing nuclear charge and the removal of the outermost electron requires less energy down a group. Thus, the ionization energy decreases down a group.

Step 2 of 2

Chapter 9, Problem 78P is Solved
Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

Since the solution to 78P from 9 chapter was answered, more than 407 students have viewed the full step-by-step answer. The answer to “Choose the element with the higher ionization energy from each pair.(a) Al or In(b) Cl or Sb(c) K or Ge(d) S or Se” is broken down into a number of easy to follow steps, and 23 words. The full step-by-step solution to problem: 78P from chapter: 9 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This full solution covers the following key subjects: choose, element, Energy, higher, ionization. This expansive textbook survival guide covers 19 chapters, and 2045 solutions. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5.

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