Atoms and Ions Textbook 5.5

Learning goals We are learning to draw Bohr and Lewis dot diagrams for ions. We are learning to calculate charges on ions.

ions Atoms that have an unequal amount of protons and electrons are called ions. Two types: Cations (positive ions): # of electrons < # of protons Anions (negative ions): # of electrons > # of protons Metals form cations Non-Metals form anions.

sodium Draw Sodium’s Bohr diagram Draw Sodium’s Bohr Ion diagram Draw Neon’s Bohr diagram

fluorine Draw Fluorine’s Bohr diagram Draw Fluorine’s Bohr Ion diagram Draw Neon’s Bohr diagram

Aluminum & Sulfur You try it with your elbow partner!!! Draw Bohr diagram and Bohr Ion diagram

Naming ions Cations Anion Positive charge Sodium  sodium ion Na1+ Negative charge Fluorine  fluoride F1-

Learning goals We are learning to draw Bohr and Lewis dot diagrams for ions. We are learning to calculate charges on ions.

Please complete Counting Particles activity Ions and the PT funsheet

Please complete P191 #4, 5, 6, 7, 8