PERIOD 1 1 IA 1.008 18 2 Group IUPAC 2 4 IIA 9.01 1 1 Group CAS IA 1.008 VIIIA 4 1 H Hydrogen 3 6.94 Atomic Number Atomic Mass Atomic Symbol 2 Li 11 Lithium 22.99 Be Beryllium 12 24.31 H Hydrogen Atomic Name Metal Alkaline Metal Alkaline Earth Metal Transition Metal Lanthanide ...
Periodic Table of Elements (BrainPOP)Polarbo 立即播放 打开App,流畅又高清100+个相关视频 更多425 -- 2:04:41 App Elements after Uranium - Periodic Videos 百万播放 205.3万 73 10:43 App 世界上“最罕见”的10大恐龙目击事件 3.4万 91 8:35 App 怎么会是这个词?(2) 物质的量 | 拗口的“物质的...
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1 元素周期表 PERIODIC TABLE OF THE ELEMENTS 第01号元素:氢[化学符号]H,读“轻”,[英文名称]Hydrogen第02号元素:氦[化学符号]He,读“亥”,[英文名称]Helium第03号元素:锂[化学符号]Li,读“里”,[英文名称]Lithium第04号元素:铍[化学符号]Be,读“皮”,[英文名称]Beryllium第05号元素:硼[化学符号]B,...
Periodic Table of the Elements. 1. Hydrogen.2. Helium.3. Lithium.4. Beryllium.5. Boron.6. Carbon.7. Nitrogen.8. Oxygen.9. Fluorine.10. Neon.11. Sodium.12. Magnesium.13. Aluminum.14. Silicon.15. Phosphorus.16. Sulfur.17. Chlorine.18. Argon.19. Potassium.20. Calcium.21. Scandium....
Let’s Begin… The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This video is about tantalum, an element not commonly heard of, but is in everyone's cell phone. Watch Think Dig Deeper Discuss …And Finally Customize this lesson 6 ...
First 20 Elements Of The Periodic Table Questions and Answers 1. What is the symbol for Potassium? A. K B. P C. Po D. C Correct Answer A. K ExplanationPotassium's chemical symbol is K, derived from its Latin name "kalium." An alkali metal, it plays a crucial role in ...
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Silicon is one of the most studied elements in the periodic table. 硅是周期表中最熟悉的元素之一。 The periodic table would appear thus to have won a temporary reprieve. 元素周期表的修改貌似要减缓咯。 权威例句 Periodic table Periodic table ...
化学动画 第⑦季 12 Periodic table -1 说明: 英文微课 第⑦季 是动画片,预计 20集左右,主题是化学科普 换个思路看看人家怎么做科普的 ,就不提供下载了。 可以拿来练习听力,字幕是 机翻的, 01 视频