元素的化学取决于在它的电子是在原子的排列方式。这种安排是现代元素周期分类的基础上：周期表。
—from Structure and Bonding (Basic Concepts in Chemistry) (结构和成键（基本概念，化学）), a book by Jack Barrett
Active since February 27, 2010.
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| Rank | Username | WPM | Accuracy | Date |
|---|---|---|---|---|
| 1. | Yijian (xyj0415) | 145.11 | 78% | 2016-06-02 |
| 2. | jordan (loveball) | 101.85 | 100% | 2011-08-02 |
| 3. | Kevin (fs822) | 97.03 | 25% | 2016-06-02 |
| 4. | Yuanji Hu (kurandge) | 85.15 | 62% | 2018-07-01 |
| 5. | J (jstylinson) | 82.11 | 21% | 2017-02-16 |
| 6. | Faye (fayeho) | 81.64 | — | 2011-04-26 |
| 7. | 无 (isscer) | 80.87 | 84% | 2017-12-08 |
| 8. | Typeracer (leonleung) | 78.45 | — | 2010-02-27 |
| 9. | NicodeX (xylodesu) | 77.78 | 84% | 2018-10-30 |
| 10. | dokger96 (dokger1996) | 75.41 | 85% | 2017-12-10 |
| 11. | DJ (getexplicit) | 75.40 | 86% | 2018-05-27 |
| 12. | eloy (eloy7) | 74.66 | 94% | 2014-06-20 |
| 13. | Ron (gboduan) | 74.33 | 26% | 2012-10-25 |
| 14. | 微信扫码 (xiaov) | 73.93 | 94% | 2017-11-08 |
| 15. | A_A (hohohaha123) | 72.90 | 89% | 2017-11-08 |
| 16. | Foofie (lyf1992924) | 72.79 | — | 2010-10-02 |
| 17. | 这辆是Ferrari (pussydavi... | 72.08 | 96% | 2017-11-06 |
| 18. | baird (xiaobaird) | 70.59 | 27% | 2013-11-12 |
| 19. | Squallcx (squallcx) | 67.61 | 85% | 2012-01-17 |
| 20. | Yan (yanshen) | 67.60 | 41% | 2015-02-02 |
| 21. | Saiki (saiki1) | 66.39 | 85% | 2018-07-14 |
| 22. | Eva (niejingtan) | 66.16 | 35% | 2016-03-16 |
| 23. | Ge (nkwbtb) | 65.68 | 49% | 2013-11-29 |
| 24. | lan (lansally) | 65.68 | — | 2010-11-27 |
| 25. | okay (toyqiu) | 61.55 | — | 2010-08-21 |
| 26. | infinite (infinitex3logy) | 61.16 | — | 2010-03-30 |
| 27. | TYPESTARS (nightprobe) | 60.93 | 27% | 2013-07-23 |
| 28. | HIFI (blastmoon) | 60.16 | — | 2010-09-26 |
| 29. | Yuwei (acevery) | 58.40 | 87% | 2012-04-10 |
| 30. | Qiu (heyroock) | 57.70 | 59% | 2017-05-23 |
| Universe | Races | Average WPM | First Race |
|---|---|---|---|
| Simplified Chinese | 74 | 58.47 | February 27, 2010 |