Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Which of the following have the largest first ionízation energy, IE,?
O B
O Ga
O Br
O i
Expert Solution

Step 1
Ionisation energy is defined as the energy required to remove electron from the gaseous form of the element.
Step 2
The periodic trend of ionisation energy are,
1) On moving from left to right along the period of periodic table, the ionisation energy of elements increases due to decrease in the size of the atom which makes it difficult to remove the electron.
2) On moving from top to bottom along the group of periodic table, the ionisation energy of elements decreases due to increase in the size of the atom which makes it easier to remove the electron.
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