Metallic Bonding

Which of the following properties are associated with metals: malleability, ductility, toughness, luster?

• Malleability and ductility

• Toughness and luster

• All of the above

• None of the above

In metal solids, the _____ electrons form a shared sea of electrons.

Corrosion as it applies to metals is:

• A process of metal degradation due to chemical reactions

• A method of metal strengthening

• A technique for metal polishing

• A way to increase metal conductivity

Tags

NGSS.HS-PS1-5

In general, what can be said of the melting points of metals?

• Metals have high melting points.

• Metals have low melting points.

• Metals have variable melting points.

• Metals do not have melting points.

A metallic bond is defined as:

• A bond formed by the sharing of electron pairs between atoms.

• A bond formed by the electrostatic attraction between oppositely charged ions.

• A bond formed between free valence electrons and cations.

• A bond formed by the overlap of atomic orbitals.

What is the relationship between the electron arrangement in metals and metals' physical properties? (Two correct answers)

• Electron arrangement in metals leads to high electrical conductivity.

• Electron arrangement in metals causes them to be brittle.

• Electron arrangement in metals results in low melting points.

• Electron arrangement in metals makes them poor conductors of heat.

• Electron arrangement results in high melting points

Tags

NGSS.HS-PS1-1

Which atomic properties distinguish 'precious metals' from metals in general?

• High density and high melting point

• High electrical conductivity and low reactivity

• Low density and high reactivity

• High thermal conductivity and high reactivity

Why are 'rare metals' so valuable?

• They are abundant and easy to find.

• They have unique properties and are scarce.

• They are not used in any important applications.

• They are inexpensive to extract and process.

Tags

NGSS.HS-ETS1-3

Alloys are formed by:

• Mixing two or more metals

• Heating a single metal

• Cooling a metal rapidly

• Adding water to a metal

What is the definition of malleability?