Question 1
[Maximum number: 4]
This question is about magnesium metal and its compounds.
Question (a)
(a)
The diagram represents the structure of magnesium.
Complete the diagram by adding the labels.
[ 2 ]- (positive) ion / cation
- (delocalised) electron
Allow:
- atom for the ion/cation label
Reject:
- proton for the ion/cation label
Question (b)
(b)
Explain why magnesium is malleable.
[ 2 ]An explanation linking the following two points:
- layers of atoms / ions
- atoms / ions can slide over one another
Allow:
- particles
Reject:
- references to intermolecular forces
Question 2
[Maximum number: 1]
This question is about metals.
Which statement describes metallic bonding?
Aelectrostatic attraction between oppositely charged ions
Belectrostatic attraction between the nuclei of two atoms and a pair of electrons shared between them
Celectrostatic attraction between positively charged particles and delocalised electrons
Delectrostatic attraction between atoms
Question 3
[Maximum number: 1]
This is a question about metals and their compounds.
State one property of metals.
(good) conductors of electricity / malleable
ACCEPT (good) conductors of heat/ductile/have basic oxides/hydroxides
ALLOW high density/ high melting point/ sonorous/shiny/hard/ strong
Question 4
[Maximum number: 2]
This question is about magnesium metal and its compounds.
The diagram represents the structure of magnesium.
Complete the diagram by adding the labels.
- (positive) ion / cation
- (delocalised) electron
Allow:
- atom for the ion/cation label
Reject:
- proton for the ion/cation label
Question 5
[Maximum number: 2]
This question is about magnesium metal and its compounds.
Explain why magnesium is malleable.
An explanation linking the following two points:
- layers of atoms / ions
- atoms / ions can slide over one another
Allow:
- particles
Reject:
- references to intermolecular forces
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