Nuclide Symbols: Atomic Number, Mass Number, Ions, and Isotopes

The video explains nuclide symbols, atomic and mass numbers, and how they relate to protons, neutrons, and electrons. It covers the representation of atoms using nuclide symbols, including atomic and mass numbers, and discusses isotopes and ions. The periodic table's arrangement by atomic number and the concept of average atomic mass are also explained, using chlorine as an example.

What happens to the charge of an atom when it gains or loses electrons?

How is the average atomic mass of an element calculated?