Chemistry Chapter 7 Lesson 3 Questions

What is the basis of metallic bonds?

• A) Attraction between positive and negative charges

• B) Sharing of electron pairs

• C) Transfer of electrons

• D) None of the above.

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Metallic bonds are based on the attraction between (a)   and negative charges.

• Positive charges

• Neutral charges

• Negative charges

• None of the above

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Which of the following statements is true about the Electron Sea Model?

• A) Metal atoms share electrons within a lattice.

• B) Outer energy levels of metal atoms overlap to form a 'sea'.

• C) Electrons are localized within the metal lattice.

• D) Metal atoms do not donate their valence electrons.

In the Electron Sea Model, electrons move freely within the sea and are called (a)   .

• Localized Electrons

• Free Electrons

• Delocalized Electrons

• Bound Electrons

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Match the following concepts related to the Electron Sea Model: Metal atoms donate their valence electrons, Electrons move freely within the sea, Outer energy levels overlap

• B

• Forms a 'sea'

• A

• Delocalized Electrons

• C

• Surrounding 'sea'

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NGSS.HS-PS1-2

What is the 'Electron Sea Model' in metallic bonds?

• A model where electrons are shared between atoms

• A model where electrons are free to move around

• A model where electrons are fixed in place

• A model where electrons are transferred between atoms.

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Match the following concepts with their descriptions:

• Allows metals to conduct electricity.

• Electron Sea Model

• Electrons are free to move

• Metallic Bonds

• Bonding in metals.

• Conductivity

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In the Electron Sea Model, electrons are (a)   to move around.

• fixed

• free

• restricted

• bound

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What are metallic bonds formed from?

• Attraction of metal cations for delocalized electrons

• Repulsion of metal cations

• Attraction of metal anions for localized electrons

• Repulsion of metal anions

Metallic bonds are formed from the (a)   of the metal cations for the delocalized electrons.

• Repulsion

• Attraction

• Neutralization

• Polarization

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NGSS.HS-PS1-3