The number of electrons in the outermost shell of atoms determines the type of bonding that occurs between atoms of the same, or different elements. The electrons found in the outermost shell,
and involved in chemical bonding, are called valence electrons. Do activity 2.4 below.
Activity 2.4 Valence electrons for some of first elements in the Periodic Table. Count the electrons for each element. Note that the first shell has up to two electrons, the second shell up to eight, and the third up to eight too. Electrons in the outermost shell are valence electrons. Art by Open Learning Initiative CC-BY-NC-SA
Watch this video to review atomic structure, and valence electrons, and octet rule: https://youtu.be/TYEYEIuTmGQ
Review Questions for Learning Objective 11 Write your answer in a sentence form. (Do not answer using loose words) 1. What does the octet rule say? 2. What are valence electrons?
Test for Learning Objective 11
Anatomy and Physiology Preparatory Course Textbook 2nd Ed. | Carlos Liachovitzky | CC BY-NC-SA 4.0
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