What Is An Atom

What is an Atom?

graph TB A[What is an Atom?] B[Protons] C[Neutrons] D[Electrons] E[Atomic Number] F[Atomic Mass] G[Isotopes] H[Energy Levels] I[Ionic and Covalent Bonds] A --> B A --> C A --> D A --> E A --> F A --> G A --> H A --> I