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 |
|---|---|---|---|
| 25221 | 2013-04-29 17:28:58 | 102.85 | 99% |
| 24834 | 2012-03-10 04:58:33 | 90.00 | 95% |
| 24030 | 2011-08-07 12:13:28 | 77.95 | 92% |
| 23907 | 2011-07-26 16:10:12 | 84.66 | 95% |
| 23881 | 2011-07-24 03:55:26 | 72.28 | 89% |
| 23715 | 2011-06-27 12:03:45 | 85.66 | 94% |
| 23074 | 2011-05-03 05:08:48 | 95.82 | 98% |
| 21656 | 2011-02-05 19:20:27 | 61.20 | |
| 21518 | 2011-01-31 15:08:56 | 63.23 | |
| 19911 | 2011-01-04 02:39:36 | 68.94 | |
| 18732 | 2010-12-21 11:32:58 | 102.39 | |
| 18394 | 2010-12-11 07:20:48 | 78.81 | |
| 17732 | 2010-11-30 14:45:03 | 79.14 | |
| 17570 | 2010-11-27 09:55:33 | 75.99 | |
| 16255 | 2010-11-11 08:14:20 | 64.50 | |
| 15881 | 2010-11-08 01:10:30 | 58.47 | |
| 15452 | 2010-11-06 01:32:53 | 72.33 | |
| 15160 | 2010-11-05 03:38:00 | 59.78 | |
| 14377 | 2010-10-26 12:33:01 | 73.50 | |
| 14311 | 2010-10-25 19:23:29 | 78.91 | |
| 14169 | 2010-10-23 16:07:33 | 56.18 | |
| 13788 | 2010-10-16 04:47:24 | 72.29 | |
| 13526 | 2010-10-15 06:25:12 | 62.01 | |
| 13516 | 2010-10-15 06:11:58 | 65.06 | |
| 13468 | 2010-10-14 18:27:30 | 60.41 | |
| 13345 | 2010-10-14 05:41:25 | 70.16 | |
| 12398 | 2010-09-30 17:52:52 | 69.59 | |
| 11618 | 2010-09-26 10:37:06 | 52.71 | |
| 9643 | 2010-09-17 10:00:48 | 56.26 | |
| 9254 | 2010-09-14 13:55:50 | 51.31 | |
| 9216 | 2010-09-14 07:43:37 | 54.89 | |
| 9171 | 2010-09-13 18:21:46 | 50.07 | |
| 8862 | 2010-09-13 06:08:06 | 42.29 | |
| 8852 | 2010-09-13 05:52:55 | 64.69 | |
| 8567 | 2010-09-12 07:20:43 | 61.84 | |
| 7753 | 2010-09-08 12:58:11 | 40.02 | |
| 7474 | 2010-09-07 03:54:51 | 51.42 | |
| 7264 | 2010-09-06 08:08:00 | 64.01 | |
| 7003 | 2010-09-04 13:42:01 | 59.06 | |
| 6989 | 2010-09-04 13:19:28 | 47.57 | |
| 6887 | 2010-09-04 08:42:16 | 58.05 | |
| 6673 | 2010-09-03 12:33:49 | 71.52 | |
| 6203 | 2010-09-01 15:28:50 | 68.70 | |
| 5057 | 2010-08-24 04:31:23 | 69.48 | |
| 5043 | 2010-08-24 04:07:18 | 59.97 | |
| 4795 | 2010-08-20 04:36:19 | 63.63 | |
| 4144 | 2010-08-14 16:38:16 | 36.00 | |
| 3953 | 2010-08-13 14:57:07 | 67.79 | |
| 3517 | 2010-08-10 13:15:34 | 51.20 | |
| 3485 | 2010-08-10 12:14:42 | 62.38 | |
| 3327 | 2010-08-09 08:10:15 | 61.56 | |
| 3208 | 2010-08-08 13:49:21 | 51.04 | |
| 2926 | 2010-08-07 18:50:09 | 49.89 | |
| 2055 | 2010-07-10 09:45:00 | 59.25 | |
| 1920 | 2010-07-10 04:21:25 | 52.06 | |
| 1478 | 2010-07-08 05:27:32 | 56.68 | |
| 1407 | 2010-06-29 04:36:42 | 55.05 | |
| 1194 | 2010-06-26 00:53:07 | 61.18 | |
| 612 | 2010-06-22 15:23:25 | 50.10 | |
| 122 | 2010-06-20 23:53:10 | 57.57 |