11) Metallic Bonding

What are modeled as a sea of electrons?

the valence electrons of metal atoms

What are the valence electrons of metal atoms modeled as?

a sea of electrons

What do metallic bonds occur between?

atoms of the same metal or different metals

What occurs between atoms of the same metal or different metals?

metallic bonds

What are the characteristics of the valence electrons of metal atoms?

mobile and can drift freely from one part of the metal to another

What are mobile and can drift freely from one part of the metal to another

the valence electrons of metal atoms

Why are metals malleable?

nuclei and free floating electrons can rearrange their structure

Nuclei and free floating electrons can rearrange their structure which is why

metals are malleable

What does it mean to be malleable?

being able to be pounded into another shape

What is the word for being able to be pounded into another shape?

malleable

A force can shatter what?

an ionic crystal

What can shatter an ionic crystal?

a force

Metals are ductile, which means what?

can be pulled into wires

what is the word for being able to be pulled into wires?

ductile

What can conduct heat and an electric current?

solid metals

Solid metals can conduct what?

heat and electric current

What are alloys?

mixtures of two or more elements, at least one is a metal

What are mixtures of two or more elements, at least one is a metal?

alloys

Alloys have properties that are often superior to what?

individual elements

What has properties that are often superior to individual elements?

alloys

What is a substitional alloy?

some metal atoms are replaced by others of similar size

In what are some metal atoms replaced by others of similar size?

a substitional alloy

What is an interstitial alloy?

interstices (holes) in closely packed metal structures are occupied by small atoms

In what are interstices (holes) in closely packed metal structures occupied by small atoms?

interstitial alloys