A tiny particle that changed the entire understanding of matter… In 1897, a simple glass tube experiment revealed something extraordinary — the electron, the first sub-atomic particle ever discovered. This single discovery shattered the idea of indivisible atoms and opened the door to modern atomic theory, electronics, and chemistry as we know it today. If you’ve ever wondered how atoms really work, this is where the story begins. 👉 Save this for revision. Share it with a science lover. https://www.chemistrynotesinfo.com/2015/01/atomic-structure-of-9-class.html 🎁 Science Books 📚 https://www.chemistrynotesinfo.com/p/books.html#🔬विज्ञान के प्रयोग🧬 #इलेक्ट्रान #📰GK & करेंट अफेयर्स Students💡 #Chemistry Notes Info #science