Quiz on Atomic and Material Structures

What is the central part of an atom called, which contains protons and neutrons?

• Electron

• Nucleus

• Molecule

• Compound

Which type of bond involves the sharing of electron pairs between atoms?

• Ionic

• Covalent

• Metallic

• Hydrogen

What is the term for a mixture of two or more metals?

• Compound

• Alloy

• Molecule

• Crystal

In the context of metals, what is a lattice structure?

• A random arrangement of atoms

• A regular, repeating arrangement of atoms

• A single layer of atoms

• A mixture of different elements

Which of the following is an example of an interstitial alloy?

• Brass

• Steel

• Bronze

• Pewter

What is the term for a solid solution where the solute atoms replace or substitute the host atoms in the lattice?

• Interstitial

• Substitutional

• Amorphous

• Crystalline

Which type of structure is characterised by a lack of long-range order?

• Crystalline

• Amorphous

• Metallic

• Ionic

What is the term for the process of crystal growth in metals?

• Alloying

• Crystallisation

• Amorphisation

• Bonding

Which of the following is a characteristic of ceramics?

• High electrical conductivity

• High melting point

• High ductility

• High malleability

What is a eutectic point in a phase equilibrium diagram?

• The point where a solid solution forms

• The point where two phases coexist in equilibrium

• The point where a liquid transforms into two solid phases

• The point where a single solid phase exists