Understanding Metallic Bonding in Metals

What type of bonding is described in metals?

• Ionic bonding

• Covalent bonding

• Metallic bonding

• Hydrogen bonding

What is the main attraction in metallic bonding?

• Between positive ions and negative ions

• Between positive ions and delocalised electrons

• Between atoms and molecules

• Between protons and neutrons

What is a lattice in the context of metallic bonding?

• A random arrangement of particles

• A regular arrangement of particles in two dimensions

• A regular arrangement of particles in three dimensions

• A chaotic arrangement of particles

What are delocalised electrons?

• Electrons that are fixed in place

• Electrons that are shared between two atoms

• Electrons that are free to move through the structure

• Electrons that are lost from the atom

In the context of metallic bonding, what is the role of delocalised electrons?

• They form covalent bonds

• They create a sea of electrons that hold the lattice together

• They repel positive ions

• They are involved in ionic bonding

Which of the following best describes the structure of sodium metal in terms of metallic bonding?

• A lattice of positive ions surrounded by delocalised electrons

• A lattice of negative ions surrounded by delocalised electrons

• A lattice of neutral atoms with no delocalised electrons

• A lattice of molecules with shared electrons

What is the charge of the ions in a metallic lattice?

• Negative

• Positive

• Neutral

• Variable

Which of the following is NOT a characteristic of metallic bonding?

• High electrical conductivity

• High melting and boiling points

• Brittle nature

• Malleability and ductility

Why are metals good conductors of electricity?

• Because they have tightly bound electrons

• Because they have delocalised electrons that can move freely

• Because they have a high density

• Because they have a low melting point

Which of the following is a property of metals due to metallic bonding?

• They are transparent

• They are brittle

• They are malleable

• They are non-conductive