What is an atom?
https://youtu.be/R1RMV5qhwyE
The periodic table
https://youtu.be/kaeDZmPJMbY
The periodic table song, with all the names!
https://youtu.be/VgVQKCcfwnU
Easy explanation of chemical bonds with dogs
https://youtu.be/_M9khs87xQ8
A song explaining chemical bonds
https://youtu.be/ylb18F-TeIU
More about covalent bounds
https://www.youtube.com/watch?v=LkAykOv1foc&t=1s
And finally, the atoms start their chemical party!
https://youtu.be/wBCmt_pJTRA