Chapter 6 Review Sheet

In general, the strength of the metallic bond ________ moving from left to right on any row of the periodic table

Increases

The lattice energy of compound A is greater than that of compound B. What can be concluded from this fact?

It will be more difficult to break the bonds in compound A than in compound B

What type of energy best represents the strength of an ionic bond?

Lattice energy

Compared with neutral atoms involved in the formation of an ionic compound, the crystal lattice that results is what?

Lower in potential energy

Use the concept of electron configurations to explain why the number of valence electrons in metals tends to be less than the number in most nonmetals?

Most metals have their outer electrons in s orbitals, while nonmetals have their outer electrons in p orbitals

What is the difference in the nuclear charge and number of electrons between weak and strong metallic bonds?

Stronger metallic bonds contain a greater nuclear charge, and more electrons

What is the relationship between the heat of vaporization of a metal and strength of the bonds that hold the metal together?

The amount of heat required to vaporize a metal is a measure of the strength of the bonds that hold the metal together

As light strikes the surface of a metal, the electrons in the electrons sea do what?

absorb and reemit the light

The fact that metals are malleable and ionic crystals are brittle is best explained in terms of their what?

chemical bonds

What type of bonding holds a polyatomic ion together?

covalent bonding with molecular and ionic characteristics

When a metal is drawn into a wire, the metallic bonds ______

do not break

How does the behavior of electrons in metals contribute to the metals ability to conduct electricity and heat?

electrons can move freely about the network of metal atoms, so it can conduct heat and electricity well

The notation for sodium chloride, NaCl, stands for one what?

formula unit

What are mobile electrons in a metallic bond responsible for?

luster, thermal conductivity, and electrical conductivity

In a crystal of an ionic compound, each cation is surrounded by a number of what?

negative ions

In metals, the valence electrons are considered to be ___ by all surrounding atoms

shared

Describe the force that holds two atoms together in an ionic bond?

very strong overall attraction between positive and negative charges

The forces of attraction between molecules in a molecular compound are ____ than the attractive forces in ionic bonding?

weaker