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Worksheetsstructure and bonding -SLT /600/M25
Total questions: 20
Worksheet time: 12mins
The name of the elements with filled up energy levels
(a)
The name of the elements that loose electrons during bonding
(a)
The type of bonding formed between non metals
(a)
Which molecular model uses perfectly spherical atoms connected by clearly defined bonds?
the space-filling model
the Lewis structure
the condensed molecular structure
the ball-and-stick model
What type of substance are methane and water?
Giant covalent molecules
Simple covalent molecules
Giant ionic lattice
Metallic structure
Explain why most giant covalent substances do not conduct electricity.
There are no electrons/ions/charged particles that are free to move
The electrons/ions/charged particles that are free to move
The electrons/ions/charged particles cannot carry the charge
There are not enough electrons/ions/charged particles to carry the charge through the structure
Explain why diamond has a high melting point
Giant structure, strong covalent bonds between the atoms, requires a lot of energy to break
Giant structure, weak covalent bonds between the atoms, requires little energy to break
Mega structure, strong covalent bonds between the atoms, requires a lot of energy to break
Mega structure, weak covalent bonds between the atoms, requires little energy to break
How many bonds does each carbon have in diamond?
2
4
6
8
What is the name given to the structure of diamond, graphite and silicon dioxide?
Mega covalent structure
Mega ionic lattice
Giant covalent
Giant ionic
Ionic compounds conduct electricity when dissolved in water. Which statement below best explains the property?
Ions are free to move.
Electrons are free to move.
Bonds are strong.
There are weak intermolecular forces of attraction.
What properties does an ionic compound have?
A low boiling point and it conducts electricity when dissolved in water
A high melting point and it conducts electricity when molten or dissolved
A high boiling point and it conducts electricity when solid
Which properties are all characteristics of ionic compounds?
solids with high melting and boiling points
soft solids which are highly malleable
when solid, the ions are held in place so the compounds cannot conduct electricity
conduct electricity when dissolved or molten
Which of the following is true for ionic bonding & ionic compounds? (3 correct statements)
They must be made of ions with like charges.
The negative ion must be written first.
Compounds must have an overall charge of zero.
They are made of metals and nonmetals.
The positive ion must be written first.
Lead Chloride is an ionic compound, made up from Pb2+ ions and Cl- ions. Which is the correct formula for this compound?
PbCl3
PbCl
PbCl4
PbCl2
An example of an ionic compound is Sodium Chloride, which is made from Na+ and Cl- ions. Why do these ions form an ionic bond?
They have like charges
They are from the same group
They are from the same period
They have opposite charges
How is an ionic bond formed?
Sharing of electrons
Delocalised electrons
Transfer of electrons
Which of the below is an ionic compounds?
Ni
MgCl2
H2O
CH4
Ionic bonds are formed between...
Non - metals
A metal and a non-metal
Metals
