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。
—from Structure and Bonding (Basic Concepts in Chemistry) (結構和成鍵（基本概念，化學）), a book by Jack Barrett
Active since December 4, 2009.
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| Rank | Username | WPM | Accuracy | Date |
|---|---|---|---|---|
| 239. | nung (nung_123) | 34.40 | 83% | 2012-02-17 |
| 240. | Seclusion (seclusion) | 34.35 | 84% | 2013-03-24 |
| 241. | yu (powerd0g) | 34.14 | 34% | 2013-07-10 |
| 242. | Mandy (twmmandy) | 34.14 | 45% | 2015-05-31 |
| 243. | Junqi (coke5151) | 33.68 | 91% | 2018-08-27 |
| 244. | 26施志0沙鹿高工2015... | 33.55 | 67% | 2015-12-25 |
| 245. | lam (lolohk1111) | 33.10 | 55% | 2016-03-06 |
| 246. | FCS 寶詠 (powing2633) | 33.09 | 37% | 2011-05-30 |
| 247. | Kingsley (s108186) | 32.88 | 48% | 2012-04-21 |
| 248. | Lau (wilwai) | 32.76 | — | 2010-04-15 |
| 249. | emma (emmali) | 32.45 | 93% | 2011-05-29 |
| 250. | 蔡 (klp99106) | 32.40 | 29% | 2015-04-28 |
| 251. | 鬼魅 (funeral) | 32.36 | — | 2010-11-26 |
| 252. | Phoebe (phoebe510) | 32.20 | 63% | 2013-03-11 |
| 253. | ep14King (ep14) | 31.53 | 39% | 2015-03-26 |
| 254. | yip (dicson8246) | 31.32 | 37% | 2011-12-04 |
| 255. | chiho312000 (chiho312000) | 31.22 | 88% | 2017-07-30 |
| 256. | Jacky (jackywkh) | 31.07 | 93% | 2012-07-31 |
| 257. | YEAH (star19900712) | 30.69 | — | 2010-08-28 |
| 258. | gerffrey (tdtsun) | 30.44 | 87% | 2015-12-12 |
| 259. | wong (shibakawa_man) | 30.29 | — | 2010-11-29 |
| 260. | man (cc123man) | 30.10 | 95% | 2012-05-04 |
| 261. | linh (meimeisoso) | 29.85 | 97% | 2013-07-24 |
| 262. | Silver (agsilver) | 29.70 | 100% | 2016-04-08 |
| 263. | anson (haruppixanson) | 29.62 | 85% | 2014-07-11 |
| 264. | deno (deno9) | 29.45 | — | 2010-09-30 |
| 265. | chow (cplsls) | 29.30 | 81% | 2011-07-15 |
| 266. | a (keung) | 28.54 | — | 2010-12-11 |
| 267. | cheng (yan820) | 28.51 | — | 2010-07-19 |
| 268. | yuni (yunichan) | 28.36 | 48% | 2014-06-30 |
| Universe | Races | Average WPM | First Race |
|---|---|---|---|
| Traditional Chinese | 475 | 48.96 | December 4, 2009 |