Guest
Record your races with a typeracer account:
Create Your Account- Save your race history and scores.
- Customize your profile and racecar.
- It’s free, why not?
Text Details
 
|
在化學元素是由方式的電子被安排在原子。這種安排是根據現代週期分類元素：週期表。
— Structure and Bonding (Basic Concepts in Chemistry) (結構和成鍵（基本概念，化學）)
 (book)
by Jack Barrett
|
| Language: | Chinese_Traditional |
This text has been typed
392 times:
| Avg. speed: | 47 WPM |
|---|---|
| Avg. accuracy: | 62.5% |