Name Date
Ionic Compounds and Metals
Section 2Ionic Bonds and Ionic Compounds
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Chemistry: Matter and Change Science Notebook
Name Date
Section 2Ionic Bonds and Ionic Compounds (continued)
ionic bond
ionic compound
crystal lattice
electrolyte
lattice energy
Skim Section 2 of your text. Write three questions that come to mind from reading the headings and the illustration captions.
1.
2.
3.
Use your text to define each term.
Formation of
an Ionic Bond
Use with pages 210–212.
Solve Read pages 211–212 in your text.
You Try It
Problem
Describe the formation of an ionic compound from the elements boron and selenium.
1. Analyze the Problem
Known: the electron configurations of the given elements
Unknown: the number of valence electrons for each neutral atom
2. Solve for the Unknown
Determine how many electrons need to be removed from boron and how many electrons need to be added to selenium to form noble gas configurations.
Determine how many boron atoms and how many selenium atoms must be present for the total number of electrons exchanged between the two elements to be equal.
3. Evaluate the Answer
The overall charge on one unit of this compound is zero.
boron ions (3+/boron ion) + selenide ions ( /selenide ion) = (3+) + () = 0
Properties of
Ionic Compounds
Use with pages 212–217.
Analyze the relationship between the lattice energy of an ionic compound and the force of attraction.
Describe the relationship between the size of the ions in a compound and the compound’s lattice energy.
Explain the relationship between lattice energy and the charge of the ion.
Organize the following ionic compounds from those with the least negative lattice energy to those with the most negative lattice energy.
____ LiCl
____ BeS
____ LiBr
____ BeO
____ BeCl2
____ RbBr
____ CsI
____ SrCl2
____ CsBr
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Chemistry: Matter and Change Science Notebook