The chemistry of an element is determined by the manner in which its electrons are arranged in the atom. Such arrangements are the basis of the modern periodic classification of the elements: the Periodic Table.
| Game | Time | WPM | Accuracy |
|---|---|---|---|
| 20825 | 2015-07-23 00:27:55 | 74.43 | 88% |
| 20802 | 2015-05-06 14:18:45 | 97.37 | 97% |
| 20596 | 2015-04-23 00:02:25 | 99.44 | 95% |
| 19446 | 2013-10-20 14:36:57 | 80.35 | 93% |
| 19115 | 2013-10-03 23:56:23 | 103.31 | 100% |
| 18967 | 2013-10-03 21:39:09 | 89.77 | 96% |
| 18939 | 2013-10-03 20:56:53 | 80.79 | 94% |
| 18053 | 2013-08-15 02:49:06 | 86.82 | 93% |
| 18013 | 2013-08-15 01:03:21 | 85.34 | 95% |
| 17475 | 2013-02-14 23:25:42 | 81.61 | 93% |
| 17309 | 2013-02-09 03:59:02 | 76.27 | 90% |
| 17223 | 2013-02-07 04:10:22 | 84.45 | 95% |
| 17198 | 2013-02-07 03:49:12 | 92.74 | 97% |
| 16860 | 2013-01-09 23:58:58 | 101.30 | 98% |
| 16545 | 2012-11-13 16:48:53 | 72.16 | 87% |
| 16535 | 2012-11-13 00:50:24 | 94.14 | 95% |
| 16514 | 2012-11-11 23:40:47 | 85.33 | 93% |
| 16423 | 2012-10-30 01:40:42 | 91.39 | 93% |
| 16328 | 2012-10-23 23:09:51 | 92.15 | 96% |
| 16291 | 2012-10-23 20:48:42 | 101.69 | 98% |
| 16129 | 2012-10-08 04:23:51 | 97.90 | 99% |
| 15813 | 2012-10-06 14:32:16 | 97.68 | 97% |
| 15788 | 2012-10-01 01:35:46 | 108.36 | 100% |
| 15402 | 2012-08-18 22:31:00 | 91.44 | 96% |
| 15043 | 2012-07-25 02:26:49 | 83.48 | 93% |
| 14360 | 2012-06-16 17:38:23 | 102.01 | 98% |
| 13974 | 2012-06-02 23:50:10 | 93.26 | 97% |
| 13626 | 2012-05-08 02:32:40 | 86.17 | 96% |
| 13343 | 2012-05-04 23:17:18 | 93.83 | 98% |
| 12740 | 2012-04-20 13:41:11 | 67.32 | 92% |
| 12606 | 2012-04-12 15:30:44 | 80.77 | 92% |
| 12307 | 2012-04-01 15:17:53 | 71.01 | 92% |
| 12117 | 2012-03-19 13:53:33 | 87.91 | 97% |
| 12075 | 2012-03-19 00:53:39 | 89.54 | 97% |
| 10800 | 2012-02-27 04:44:24 | 73.52 | 93% |
| 10255 | 2012-02-18 15:19:05 | 84.73 | 97% |
| 10221 | 2012-02-17 04:26:42 | 79.74 | 96% |
| 9911 | 2012-02-13 23:21:14 | 82.33 | 94% |
| 9776 | 2012-02-12 14:24:34 | 82.35 | 95% |
| 9638 | 2012-02-10 21:01:43 | 85.72 | 95% |
| 9201 | 2012-02-02 22:36:54 | 91.33 | 96% |
| 8639 | 2012-01-29 01:54:04 | 79.77 | 93% |
| 8141 | 2012-01-24 22:19:41 | 91.98 | 95% |
| 7690 | 2011-11-27 04:52:24 | 69.97 | 91% |
| 7524 | 2011-11-08 04:08:05 | 78.06 | 90% |
| 7150 | 2011-10-06 21:49:28 | 78.38 | 89% |
| 6951 | 2011-09-07 00:42:53 | 77.41 | 95% |
| 6121 | 2011-04-19 05:02:53 | 72.77 | |
| 5437 | 2011-03-03 20:16:53 | 78.62 | |
| 4271 | 2010-12-07 22:10:01 | 84.31 | |
| 3570 | 2010-09-06 19:53:52 | 64.11 | |
| 3311 | 2010-09-03 05:04:24 | 92.03 | |
| 3136 | 2010-08-29 23:22:35 | 65.08 | |
| 3052 | 2010-08-23 20:19:40 | 69.57 | |
| 3022 | 2010-08-22 17:02:04 | 61.55 | |
| 2784 | 2010-08-17 23:26:48 | 76.39 | |
| 1895 | 2010-07-23 14:12:24 | 76.24 | |
| 1783 | 2010-07-23 05:39:23 | 79.73 | |
| 827 | 2010-07-10 21:20:55 | 56.84 | |
| 736 | 2010-07-04 21:27:57 | 45.71 |