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| Name | Finding the Number of Valence Electrons for an Element |
| Video Uploader | Video From Wayne Breslyn |
| Upload Date | This Video Uploaded At 26-05-2013 16:52:43 |
| Video Discription | An explanation and practice for finding the number of valence electrons for elements on the periodic table. This is a key first step for drawing Lewis dot structures for molecules. Looking at the Periodic Table, atoms have a regularly occurring number of valence electrons based on their Group number. Group 1: One Valence Electron Group 2: Two Valence Electrons Group 13 (also called 3A): Three Valence Electrons Group 14 (also called 4A): Four Valence Electrons Group 15 (also called 5A): Five Valence Electrons Group 16 (also called 6A): Six Valence Electrons Group 17 (also called 7A): Seven Valence Electrons Group 18 (also called 8A): Eight Valence Electrons* * Although in Group 18, the element Helium only has two valence electrons. In general we do not draw Lewis Structures for atoms of the Transition Metals (Groups 3-12). Get more chemistry help at www.Breslyn.org. |
| Category | Education |
| Tags | valence electrons | periodic table | lewis structure | groups | periodic groups | chemistry help | chemistry tutorial |
