Understanding Atomic Structure: Oxygen, Sulfur, Selenium, Tellurium & Polonium Explained This instructional video breaks down the atomic structure of five important elements: oxygen, sulfur, selenium, tellurium, and polonium. Designed for grade 8 students, it explains atomic number, atomic mass, electrons, protons, and neutrons with clear visuals and examples. Learn how these atomic components influence each element's unique properties and real-world uses. Perfect for enhancing your science know