Font size
WorksheetsIGCSE structure and bonding
Total questions: 23
Worksheet time: 18mins
What is the name for a fixed number of atoms joined together by covalent bonds?
(a)
What is the electron configuration of a fluoride ion?
2,7
9
2,8
10
Non-metal atoms become ions by _______ electrons
Receiving
Giving away
Metal atoms become ions by (a) electrons
An ionic bond is the strong _____________ __________ between a positive ion and a negative ion
(a)
Which of these are ionic compounds?
MgO
SiO2
LiF
CO2
Which of these are giant covalent structures?
CO2
SiO2
Graphite
Buckminsterfullerene
The structure of an ionic compound is a giant 3D ionic l (a) with a regular arrangement of alternating positive and negative ions held together by the electrostatic force of attraction.
What must you do to sublime diamond? (Select two words.)
Break
Bonds
Overcome
Intermolecular forces of attraction
What must you do to sublime carbon dioxide? (Select two words.)
Break
Bonds
Overcome
Intermolecular forces of attraction
Which of these are present in the compound silicon dioxide?
Intermolecular forces of attraction
Ionic bonds
Covalent bonds
Silicon atoms
A covalent bond is the strong electrostatic attraction between a shared ____ __ _________ and the positive nuclei of two atoms.
(a)
A covalent bond is the strong electrostatic attraction between a shared pair of electrons and the ________ ______ of two atoms.
(a)
What forces are present in carbon dioxide?
Covalent bonds
Intermolecular forces of attraction
Ionic Bonds
Which of these forces are present in graphite?
Intermolecular forces of attraction
Covalent bonds
Interlayer forces of attraction
Ionic bonds
Metals are a giant structure of regularly arranged positive ions surrounded by a ___ __ ___________ ________
(a)
Which of these can conduct electricity?
Copper
Graphite
Buckminsterfullerene
NaCl (s)
NaCl (aq)
Which of these are simple molecular structures?
LiO
SiO2
Buckminsterfullerene
Chloroethane
Graphite conducts electricity because it has one delocalised electron per (a) atom that is free to move (between layers).
Which of these requires more energy to break/overcome?
Intermolecular forces of attraction
Covalent bonds
Ionic substances have high melting points because the e___________ f_____ of attraction between oppositely charge ions (aka. ionic bonds) are strong and lots of energy is therefore required to separate the ions.
(a)
Which of these has the strongest intermolecular forces of attraction?
Oxygen (O2)
Methane (CH4)
Iodine (I2)
Chlorine (Cl2)
How many electrons does a lithium ion have in its outer shell?
(a)
