Periodiske System Forklaring (updated 2025-04-03)
Duration: 10:09
13.1K views | Oct 2, 2020
13.1K views | Oct 2, 2020
Duration: 9:10
9.4K views | Oct 14, 2020
9.4K views | Oct 14, 2020
Duration: 7:45
56.4K views | Jun 12, 2019
56.4K views | Jun 12, 2019
Duration: 7:52
26.1K views | Feb 9, 2017
26.1K views | Feb 9, 2017