Unit 8 Metallic Exam Review

Front

What are valence electrons in metals?

Back

Valence electrons in metals are electrons that are shared by all of the atoms, allowing for metallic bonding.

Front

What is an interstitial alloy?

Back

An interstitial alloy is a type of alloy where smaller atoms fill the spaces (interstices) between larger metal atoms.

Front

What is the role of electrons in metallic bonds?

Back

Electrons in metallic bonds are mobile, allowing metals to conduct electricity.

Front

What is a metallic bond?

Back

A metallic bond is a bond between two metal atoms, characterized by a sea of delocalized electrons.

Front

Why are metals good conductors of electricity?

Back

Metals are good conductors of electricity because their valence electrons are mobile and can move freely.

Front

What is a substitutional alloy?

Back

A substitutional alloy is formed when some of the metal atoms in the alloy are replaced by atoms of another metal.

Front

What is the difference between interstitial and substitutional alloys?

Back

Interstitial alloys have smaller atoms filling the spaces between larger atoms, while substitutional alloys have atoms of similar size replacing some of the original metal atoms.

Front

What is the significance of electronegativity in metallic bonding?

Back

In metallic bonding, electronegativity is less significant because the electrons are shared among all atoms rather than being localized.

Front

How does the structure of metals contribute to their properties?

Back

The structure of metals, with closely packed atoms and mobile electrons, contributes to their strength, malleability, and conductivity.

Front

What is the relationship between metallic bonds and malleability?

Back

Metallic bonds allow layers of atoms to slide over each other without breaking the bond, making metals malleable.