Learners read definitions of atomic symbols, atomic numbers, and mass numbers and then answer questions about the number of neutrons, protons, and electrons in select elements.
By Debbie McClinton Dr. Miriam Douglass Dr. Martin McClinton
Ions are electrically charged particles obtained from an atom or from a chemically bonded group of atoms by adding or removing electrons. Eight examples illustrate the number of protons, neutrons, and electrons in positive ions (cations) and in negative ions (anions).
By Debbie McClinton Dr. Miriam Douglass Dr. Martin McClinton