Youtor
Key Chemistry Skill Finding Valence Electrons Using the Periodic Table
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=3WelDGcVyoM
An essential skill in chemistry is being able to quickly find the number of valence electrons using the Periodic Table. Fortunately there is a easy to follow pattern based on the Group (column on the Periodic Table) each element if found in. • Group Valence Electrons • 1 1 • 2 2 • *Skip the Transition Metals • 13 3 • 14 4 • 15 5 • 16 6 • 17 7 • 18 8 (except Helium which has 2) • *For the Transition Metals, see my video: • How to Find the Number of Valence Ele... • Valence electrons are important since they are the electrons that are involved in chemical bonds. • You can also look at the electron configuration for an element to determine the number of valence electrons for that element. The valence electrons are in the highest energy level. • Helpful videos: • • Finding Valence Electrons for Transition Metals: • How to Find the Number of Valence Ele... • • Finding Valence Electrons (element): • Finding the Number of Valence Electro... • • Finding Valence Electrons (molecule): • Finding the Number of Valence Electro... • • How to Draw Lewis Structures: • How to Draw Lewis Structures: Five Ea...
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