STUDY GUIDE: 69 Thulium | Periodic Table of Elements Science Activism 1:01 8 years ago 376 Скачать Далее
Element 69: No, Its Thulium, What Were You Thinking? 😳⚗️🧪 Little Einstein Adi 0:17 8 days ago 8 Скачать Далее
agtperiodictable.com - atomic element: 69 symbol: Tm Name: Thulium AGT STEM 1:45 1 year ago 13 Скачать Далее
Thulium - The RAREST AMONG THE RARE Earth Metals! Thoisoi2 - Chemical Experiments! 5:13 6 years ago 150 350 Скачать Далее
