ม5 Metallic Bonds

What is the basis of a metallic bond?

• the attraction of neutral metal atoms.

• the attraction between protons and neutrons.

• the attraction between positive metal ions and interlocking electrons.

• when many metal atoms pool their valance electrons.

Tags

NGSS.HS-PS1-3

At room temperature, most metals are

• liquid
• solid
• gas
• an alloy

Tags

NGSS.MS-PS1-4

What does malleable mean?

• able to be shaped
• will break easily
• can be used for wire
• is shiny

What is the ability of a substance to be pulled into a thin strand?

• Malleability
• Ductility 
• Conductivity
• Solubility

Why do metals conduct electricity?

• They are shiny

• The electrons are held tightly within the lattice

• The valence electrons can move from ion to ion

• The electrons are shared between two metal ions

How are compounds with metallic bonds similar to ionic compounds?

• Both tend to have double and triple bonds.

• Both tend to have low boiling point

• Both tend to have poor conductivity.

• Both tend to have high melting points.

Tags

NGSS.HS-PS1-3

What are the valence electrons in metallic bonds attracted to?

• Positively charged ions inside of the metal

• Positively charged ions outside of the metal

• Negatively charged ions inside of the metal

• Negatively charged ions outside of the metal.

Tags

NGSS.HS-PS1-3

What is the 'sea of electrons'?

• A wave of electrons.

• Electrons surrounding positive ions in metallic bonds.

• Electrons in an electron cloud.

• Electrons released when atoms form ions.

Tags

NGSS.HS-PS1-3

Which are normal proterties of molecules with metallic bonds

• Malleable

• Usually liquids

• High melting point

• Dissolve in water

A metallic bond involves two oppositely charged ions forming an ionic bond.

• True

• False