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Ch.3 Ionic CompoundsWorksheetSee all chapters
All Chapters
Ch.1 Matter and Measurements
Ch.2 Atoms and the Periodic Table
Ch.3 Ionic Compounds
Ch.4 Molecular Compounds
Ch.5 Chemical Compounds
Ch.5 Classification & Balancing of Chemical Reactions
Ch.6 Chemical Reactions & Quantities
Ch.7 Energy, Rate and Equilibrium
Ch.8 Gases, Liquids and Solids
Ch.9 Solutions
Ch.10 Acids and Bases
Ch.11 Nuclear Chemistry
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions

Ionic Radius is the distance between an ion's nucleus and its most outer occupied electron shell.

Ionic Radius

Concept #1: Ionic Radius

Periodic Trend: Ionic Radius increases as the number of electrons increases.

Example #1: Which of the following statements is false?

Practice: Which of the following statements is false?

a) The phosphide ion has a smaller ionic radius than the phosphorus atom.
b) The phosphide ion has a larger ionic radius than the phosphorus atom.
c) The phosphide ion’s ionic radius cannot be compared to the phosphorus atom.
d) The phosphide ion has an equal ionic radius than the phosphorus atom.