S2.3 The metallic model
13 revision questions with answers for S2.3 The metallic model, marked SL. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Electrostatic attraction between a lattice of cations and delocalised electrons?
- Metallic bondingRight answer
- Ionic bonding
- Covalent bonding
- Hydrogen bonding
What this set covers
Metallic bonding and its consequences: a lattice of cations in delocalised electrons, conductivity, malleability and ductility, and how charge and ionic radius affect melting points across Na, Mg and Al and down group 1.
- Common mix-up
- Students often swap malleability and ductility: malleable metals can be hammered into sheets, ductile metals can be drawn into wires.
- Revision tip
- Explain in two sentences why Al melts higher than Na, using the number of delocalised electrons, then do the same for caesium against lithium.
All 13 questions and answers
Electrostatic attraction between a lattice of cations and delocalised electrons?
Answer: Metallic bonding
Two types of particle in a metallic lattice?
Answer: Cations and electrons
Structure type of solid copper?
Answer: Giant metallic
Metals conduct electricity because they contain…?
Answer: Delocalised electrons
Metals are malleable because layers of cations can…?
Answer: Slide over each other
Property that lets metals be drawn into wires?
Answer: Ductility
Property that lets metals be hammered into sheets?
Answer: Malleability
Metallic bonding is stronger for cations with higher charge and smaller…?
Answer: Ionic radius
Delocalised electrons contributed by each aluminium atom?
Answer: 3
Melting points of the group 1 metals down the group…?
Answer: Decrease
Order of increasing melting point for Al, Na and Mg?
Answer: Na, Mg, Al
Which of these metals has the highest melting point?
Answer: Magnesium
Which of these group 1 metals has the weakest metallic bonding?
Answer: Caesium
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options were written for that question.