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WorksheetsMetallic Bond
Total questions: 25
Worksheet time: 25mins
What is the ability of a substance to be pulled into a wire?
Malleability
Ductility
Conductivity
Solubility
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
In which part of the periodic table are metals mostly found?
At the top
On the left
On the right
Which of these describes the arrangement of particles in a metal?
Closely packed electrons with delocalised ions
Alternating layers of metal ions and electrons
Layers of metal ions surrounded by delocalised electrons
What does 'malleable' mean?
Able to be drawn into wires
Able to conduct electricity
Able to be hammered into thin sheets
Why do metals have high melting points?
Metallic bonds are weak and metals have a simple structure
Metallic bonds are strong and metals have a lattice structure
Metallic bonds are strong and metals have a simple structure
Metals have positive ions in a ‘sea of electrons’. Which metal atom provides the most electrons for the sea?
Aluminium
Sodium
Calcium
Magnesium
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
Why do metallic compounds conduct electricity as solids?
core electrons are mobile, allowing electricity to flow through the metal
valence electrons are mobile, allowing electricity to flow through the metal
protons are mobile, allowing electricity to flow through the metal
the metal cations are mobile, allowing electricity to flow through the metal
Why does the melting point of metals increase across period 3, from Sodium (Na) to Aluminium (AI)?
Size of atoms gets smaller
Attraction force between nuclei and free electron increases
Increased space between the valence electrons in the "sea"
Increased number of valence electrons contributed to the "sea"
Brass is an alloy consisting of a mixture of
copper and zinc
copper and lead
copper and tin
tin and lead
The main element present in brass and bronze is
copper
lead
zinc
tin
Which of the following alloy is used to make the body of an aeroplane?
Brass
Duralumin
Steel
Pewter
Which of the following is not the aim of alloying?
To increase the strength and hardness of metal.
To prevent corrosion of metal.
To improve the appearance of metal
To increase the melting point.
Which of the following properties does not belong to an alloy as compared to its pure metal?
Stronger
More corrosion resistant
Harder
More malleable
Alloy is a ...
A chemical compound with combination between metal and non-metal
A salt contain of two or more elements where the main element is non-metal
Mixture of two or more elements where the main element is metal
