Discover the basics of atoms and elements with our comprehensive guide! Learn how atomic number (Z) and mass number (A) define an atom’s composition. Find out about ions, cations, and anions, and explore the significance of protons, neutrons, and electrons in forming atoms. Uncover the role of valence electrons and isotopes in element identification. Enhance your understanding of electron dot diagrams and energy levels. Dive into the world of chemistry with key terms like nucleus, proton…