Understanding Atomic Structure: N, P, As, Sb & Bi Explained for Grade 8 This educational video breaks down the atomic structure of nitrogen, phosphorus, arsenic, antimony, and bismuth. Designed for grade 8 students, it explains atomic numbers, atomic masses, and the roles of electrons, protons, and neutrons using clear diagrams. Discover how these elements fit into the periodic table and their real-world importance. The friendly and engaging presentation helps students connect science concepts w