https://www.khanacademy.org/science/cambridge-o-level-chemistry-cie/x8bc8fb44369617ed:atoms-elements-and-compounds/x8bc8fb44369617ed:elements-compounds-and-mixtures/v/elements 2025-01-16T17:32:17.772857468Z Elements Elements are the fundamental building blocks of all matter, just as letters form the basis of all writing. With only about 100 natural elements, nature constructs everything around us—from tiny microbes to vast oceans and stars. These elements, represented by symbols on the periodic table, combine in countless ways to create the diverse materials that make up the universe. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/7bad28ff-1c16-4904-860d-48ebd21ceb41_1280_720_base.png Elements Elements are the fundamental building blocks of all matter, just as letters form the basis of all writing. With only about 100 natural elements, nature constructs everything around us—from tiny microbes to vast oceans and stars. These elements, represented by symbols on the periodic table, combine in countless ways to create the diverse materials that make up the universe. https://cdn.kastatic.org/ka-youtube-converted/PeNjuIQFd9U.mp4/PeNjuIQFd9U.mp4 313 Elements and atoms https://www.khanacademy.org/science/cambridge-o-level-chemistry-cie/x8bc8fb44369617ed:atoms-elements-and-compounds/x8bc8fb44369617ed:elements-compounds-and-mixtures/a/elements-atoms-and-the-periodic-table 2026-04-17T11:10:45.679633951Z Learn and try: Elements, atoms, and the periodic table Learn about the basic building blocks of all matter and how atoms of different elements have unique properties. Discover how elements are organized on the periodic table and what makes each element distinct. article https://www.khanacademy.org/science/cambridge-o-level-chemistry-cie/x8bc8fb44369617ed:atoms-elements-and-compounds/x8bc8fb44369617ed:elements-compounds-and-mixtures/e/apply-elements-and-atoms 2026-06-30T14:20:41.927190319Z Apply: Elements and atoms Apply your understanding of elements and atoms in this set of free, standards-aligned practice questions. donna exercise https://www.khanacademy.org/science/grade-7-science-tx/xe25057200abc6bd6:elements-and-compounds/xe25057200abc6bd6:elements-and-atoms/e/apply-periodic-table-7th-teks 2026-06-30T14:20:41.927190319Z Apply: Periodic table Apply your understanding of the periodic table in this set of free, standards-aligned practice questions. Donna fig exercise