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🎯 Загружено автоматически через бота: 🚫 Оригинал видео: 📺 Данное видео принадлежит каналу «Wayne Breslyn (Dr. B.)» (@wbreslyn). Оно представлено в нашем сообществе исключительно в информационных, научных, образовательных или культурных целях. Наше сообщество не утверждает никаких прав на данное видео. Пожалуйста, поддержите автора, посетив его оригинальный канал. ✉️ Если у вас есть претензии к авторским правам на данное видео, пожалуйста, свяжитесь с нами по почте support@, и мы немедленно удалим его. 📃 Оригинальное описание: A step-by-step explanation of how to draw the SF4 Lewis Dot Structure (Sulfur tetrafluoride). For the SF4 structure use the periodic table to find the total number of valence electrons for the SF4 molecule. Once we know how many valence electrons there are in SF4 we can distribute them around the central atom with the goal of filling the outer shells of each atom. In the Lewis structure of SF4 structure there are a total of 34 valence electrons. SF4 is also called Sulfur tetrafluoride. Note that SF4 can have an Expanded Octet and have more than eight valence electrons. Because of this there may be several possible Lewis Structures. To arrive at the most favorable Lewis Structure we need to consider formal charges. See how to calculate formal charges: ---- Steps to Write Lewis Structure for compounds like SF4 ----- 1. Find the total valence electrons for the SF4 molecule. 2. Put the least electronegative atom in the center. Note: Hydrogen (H) always goes outside. 3. Put two electrons between atoms to form a chemical bond. 4. Complete octets on outside atoms. 5. If central atom does not have an octet, move electrons from outer atoms to form double or triple bonds. ---- Lewis Resources ---- • Lewis Structures Made Simple: • More practice: • Counting Valence Electrons: • Calculating Formal Charge: • Exceptions to the Octet Rule: Lewis Structures are important to learn because they help us understand how atoms and electrons are arranged in a molecule, such as Sulfur tetrafluoride. This can help us determine the molecular geometry, how the molecule might react with other molecules, and some of the physical properties of the molecule (like boiling point and surface tension). Chemistry help at
