filmov
tv
The Protactinium(Pa) Information,history : Radioactivity,Thorium-232
Показать описание
The Protactinium(Pa) Information,history
Don't forget to click that subscribe button
#protactinium #periodictable #radioactivity #thorium #education
Don't forget to click that subscribe button
#protactinium #periodictable #radioactivity #thorium #education
0:03:19
0:00:55
0:20:39
0:30:24
0:17:51
0:23:28
0:12:00
0:14:57
0:21:36
0:22:17
0:56:53
1:20:22
0:06:36
0:04:32
0:18:42
0:20:00
0:44:35
0:10:40
0:12:53
0:20:16
0:31:37
0:11:44
0:18:12
0:15:56