Learn Roulette Video Source & Info:

Fundamental Forces | Strong nuclear force | Atom | Nucleaus | Proton | Neutron | Repulsion | Stability of an atom | Electromagnetic Force Vs Strong Nuclear Force

Link 1 – Ancient view on Atom – https://youtu.be/Tqd0IBc_kTc
Link 2 – Atomic Models – https://youtu.be/1KvPJ_bDYEU
Link 3 – Atomic Number and Mass – https://youtu.be/yUcxsRq87wU

Source: YouTube