906K views · 10K reactions | Discovery of Radioactivity. Discovery Of Radium. | Physics Theories | Facebook

Marie Sklodowska Curie discovered polonium in an experiment conducted #OnThisDay in 1898. Watch the story behind the discovery of polonium, as well as radium, which was also discovered the same year. | Nobel Prize

Alkaline Earth Metals Explained: Atomic Properties & Real-World Uses for Grade 8 Chemistry This instructional video introduces grade 8 students to the alkaline earth metals—Beryllium, Magnesium, Calcium, Strontium, Barium, and Radium. It compares these elements based on atomic number, atomic mass, and the numbers of protons, electrons, and neutrons. The video also highlights their important applications in fields like construction, electronics, and medicine. Clear diagrams and simple animations