Summary
Highlights
The video starts by posing the question of what makes up atoms, introducing protons, electrons, and neutrons as the constituent particles. It highlights that there are 118 different kinds of atoms, each forming a unique element with distinct properties due to their internal atomic structure.
The number of protons within an atom is crucial, as it determines the element. This quantity is also known as the atomic number, which is found on the periodic table. For example, hydrogen has one proton, helium has two, and lithium has three, continuing up to Oganesson with 118 protons.
Electrons are much smaller than protons and orbit them at high speeds, forming an electron cloud. They have a negative electrical charge, which is attracted to the positive charge of protons. This attraction, called the electric force, is why stable elements have an equal number of electrons and protons.
Neutrons are vital because, without them, the repulsive electric force between positively charged protons would cause them to push each other out of the atom. The strong nuclear force, or strong force, exists between neutrons and protons, acting like glue to hold the nucleus together and prevent it from flying apart. Without neutrons, everything would simply be hydrogen.