Covalent bonding (AQA GCSE Chemistry Combined Science): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Which types of atoms join together through covalent bonding?
Which types of atoms join together through covalent bonding?
Non-metal atoms
What do atoms share when they form a covalent bond?
What do atoms share when they form a covalent bond?
A pair of electrons
What is the key difference between covalent and ionic bonding?
What is the key difference between covalent and ionic bonding?
Covalent bonds share, ionic bonds transfer
How many electrons are involved in each covalent bond?
How many electrons are involved in each covalent bond?
Two electrons
In dot-and-cross diagrams, what do the dots represent?
In dot-and-cross diagrams, what do the dots represent?
Electrons from one atom
Which electrons are shown in dot-and-cross diagrams?
Which electrons are shown in dot-and-cross diagrams?
Outer shell electrons only
How many pairs of electrons are shared in a single covalent bond?
How many pairs of electrons are shared in a single covalent bond?
One pair
Which molecule contains a double covalent bond?
Which molecule contains a double covalent bond?
Which molecule contains a triple covalent bond?
Which molecule contains a triple covalent bond?
What are lone pairs?
What are lone pairs?
Electron pairs not shared in a bond
How many more electrons does carbon need in its outer shell?
How many more electrons does carbon need in its outer shell?
4 more electrons
How many more electrons does oxygen need in its outer shell?
How many more electrons does oxygen need in its outer shell?
2 more electrons