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WorksheetsBonding - Metals and GMS
Total questions: 27
Worksheet time: 10mins
Define the term allotropes
Atoms with same proton number but different number of neutrons
Atoms with same proton number but different mass number
Atoms in different arrangement but same structure
Atoms in different arrangement and different structural form
Graphite, diamond and Buckminsterfullerene are all allotropes of
Berylium
Silicon
Germanium
Carbon
Which has a 3D tetrahedral structure?
graphite
diamond
fullerene
none of these
Graphite is soft because
it has strong covalent bonds
its layers can slide over one another due to weak forces between the layers
it has weak van der Waals forces between layers
it is used as a lubricant
Why do simple molecular substances have low melting and boiling points?
The intermolecular forces between simple molecules are weak.
The covalent bonds holding the atoms together in a simple molecule are strong.
A large number of covalent bonds hold the atoms together in simple molecules.
Metals have positive ions in a ‘sea of electrons’. Which metal atom provides the most electrons for the sea?
Aluminium
Sodium
Calcium
Magnesium
Which statement describes the structure of copper?
It has a lattice of negative ions in a ‘sea of electrons’.
It has a lattice of negative ions in a ‘sea of protons’.
It has a lattice of positive ions in a ‘sea of electrons’.
It has a lattice of positive ions in a ‘sea of protons’
Which statement about metals is correct?
Layers of positive ions can slide over each other making metals malleable.
Metallic bonding consists of a lattice of negative ions in a sea of delocalised electrons.
Metallic bonding consists of a lattice of positive ions in a sea of delocalised negative ions.
Metals conduct electricity because positive ions are free to move.
Which statement describes metallic bonding?
The attraction between a lattice of negative ions and delocalised protons.
The attraction between a lattice of positive ions and delocalised electrons.
The attraction between delocalised protons and electrons.
The attraction between oppositely charged ions.
The diagram shows metallic bonding.
Which labels are correct?
X: atomic nucleus
Y: outer electron
X: metal atom
Y: mobile electron
X: metal cation
Y: mobile electron
X: positive ion
Y: negative ion
X is a solid at room temperature.
X has a high melting point.
Solid X conducts electricity.
Which diagram shows how the particles are arranged in solid X?
Which of the following is an alloy?
stainless steel
chromium
nickel
lead
Which of these are considered properties of metals? (choose ALL that apply)
brittleness
low melting point
luster (shininess)
malleability
ductility
