Периодический закон и периодическая таблица. ЭО, СО, валентность.
7 months ago 02:46:26 0
7 months ago 00:18:47 24
7 months ago 00:03:18 0
7 months ago 00:17:13 1
7 months ago 00:19:38 0
![Как из хаоса рождается порядок? [Veritasium]](https://sun9-36.userapi.com/XrE_jttCM29HIz64Zdz9qxOqFGcScvGoYy2dTA/gEXxr-M6S18.jpg)
7 months ago 00:03:28 1
7 months ago 00:03:39 0
7 months ago 01:08:06 0
8 months ago 00:27:40 5
8 months ago 00:05:37 0
8 months ago 03:43:23 0
8 months ago 00:09:27 5
8 months ago 00:04:15 0
8 months ago 01:00:25 0
8 months ago 00:06:42 0
8 months ago 01:10:24 0
8 months ago 00:05:13 0
8 months ago 03:26:18 4
8 months ago 00:19:58 0
![Мозаика Пенроуза, бесконечная и неповторимая [Veritasium]](https://sun9-58.userapi.com/TPZHmhj1SImpzUpZP4M9PLqKR1DXtfLACFX2fA/6ogSKqXkbW8.jpg)
8 months ago 00:31:28 0
8 months ago 00:09:34 0
8 months ago 00:42:23 0
8 months ago 00:04:51 0
8 months ago 00:28:50 0
