Question 1
Which particles are present in the structure of metals?
1 positive ions
2 negative ions
3 shared pairs of electrons
4 mobile electrons
A
1 and 2
B
1 and 4
C
2 and 3
D
2 and 4
Question 2
[Maximum number: 1]
Substance P conducts electricity when solid.
Which particles move in solid P so that it can conduct electricity?
1 anions
2 cations
3 electrons
A
1 and 2
B
1 only
C
2 and 3
D
3 only
D
Question 3
[Maximum number: 1]
Which statement describes the structure of copper?
A
It has a lattice of negative ions in a 'sea of electrons'.
B
It has a lattice of negative ions in a 'sea of protons'.
C
It has a lattice of positive ions in a 'sea of electrons'.
D
It has a lattice of positive ions in a 'sea of protons'.
C
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