Timestamps:
0:00 - Group 1 (Hydrogen + Alkali Metals)
0:16 - Group 2 (Alkaline Earth Metals)
0:24 - Group 3 (Scandium Group)
0:26 - Lanthanides
0:46 - Actinides
1:05 - Group 4 (Titanium Group)
1:09 - Group 5 (Vanadium Group)
1:12 - Group 6 (Chromium Group)
1:15 - Group 7 (Manganese Group)
1:30 - Group 8 (Iron Group)
1:33 - Group 9 (Cobalt Group)
1:37 - Group 10 (Nickel Group)
1:39 - Group 11 (Copper Group)
1:42 - Group 12 (Zinc Group)
1:48 - Group 13 (Boron Group)
1:52 - Group 14 (Carbon Group)
1:57 - Group 15 (Pnictogens)
2:04 - Group 16 (Chalcogens)
2:09 - Group 17 (Halogens)
2:15 - Group 18 (Noble Gases)