This website requires Javascript to function properly. Please go to the setting of your web browser and enable Javascript for this website.
×
Loading...
@BC
Mall
Forum (EN)
Groups
Blogs
Topic
Panel View
Tree View
Close
Home
Refresh
Share
Sign In/Sign Up
Mall
Forum (English)
Blogs
Groups
Polls
Rolia Radio
This topic has been archived. It cannot be replied.
工作学习
/
科技领域杂谈
/
初中学化学,最重要的就是背好元素周期表。今天无意看到一篇讲元素周期表的发明者,俄国的门捷列夫。真了不起。
-
lier
(骑牛旅行者);
2010-3-25
{4945}
(#5969085@0)
Electron configuration is more important than the periodic table of elements. You do not need to memorize, but understand.
-
xiaohui
(xiaohui);
2010-3-27
(#5973689@0)
Share
More Topics
宇宙中的物质,84%是暗物质,剩下16%是普通物质,普通物质里只有五分之一发可见光,所以我们能看到的宇宙是宇宙的很小一部分。我的问题来了:我们身边有暗物质吗?
Anti-Gravity Technology Hidden in Nature - Viktor Grebennikov
在空间上呆一年,吃什么?有红烧肉吗?有猪头肉吗?没有的话我不去。
Ancient Egyptian electricity inside the Great Pyramid of Giza
Elon Musk Unveils UFO Fighter Jet That Defies Physics
枫下论坛主坛
/
工作学习
/
科技领域杂谈