CFU - Metallic Bonds

What are electrons that can move freely throughout the empty orbitals of a metallic crystal called?

• Localized electrons

• Free electrons

• Delocalized electrons

• Bound electrons

What is a metallic bond?

• The attraction between metal atoms

• The attraction of stationary metal cations to mobile electrons

• The repulsion between metal ions

• The sharing of electrons between nonmetals

In metallic bonds, do metal atoms lose their valence electrons?

• No, they do not lose their valence electrons

• Yes, they lose their valence electrons

• Sometimes, depending on the metal

• Only in the presence of non-metals

Do metallic bonds result in the formation of compounds?

• No, they do not result in compound formation

• Yes, they always form compounds

• Sometimes, depending on the metals involved

• Only when mixed with non-metals

What type of bond involves delocalized electrons?

• Metallic bond

• Ionic bond

• Covalent bond

• Hydrogen bond

What structure do metals like to form in metallic bonds?

• Molecules

• Crystals

• Lattices

• Chains

What is the effect of the "Sea of Electrons" on the strength of metals?

• It weakens metals

• It strengthens metals

• It has no effect

• It makes metals brittle

How does the "Sea of Electrons" model explain the malleability of metals?

• Electrons are fixed, allowing layers to slide

• Electrons are delocalized, allowing layers to slide

• Electrons are stationary, preventing layers from sliding

• Electrons are localized, preventing layers from sliding

Which of the following is a result of the "Sea of Electrons" in metals?

• High melting point

• Low melting point

• High solubility

• Low solubility

Which term describes a metal's ability to be hammered into shape?

• Ductility

• Malleability

• Conductivity

• Hardness