Chemistry GCSE
Silicon dioxide
What Silicon dioxide means in Chemistry GCSE, as defined for AQA.
Definition of Silicon dioxide
Check what you remember
Read the wording for your board, then hide it and explain Silicon dioxide in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The main compound in sand, with a giant covalent structure in which each silicon atom is bonded to four oxygen atoms and each oxygen atom is bonded to two silicon atoms.
Topics that use Silicon dioxide
- Covalent bonding (AQA GCSE)
Related terms
- Addition polymerisation
- Bond strength and energy transfer
- Covalent bonding
- Diamond
- Dot and cross diagrams
- Explaining physical properties of simple molecules
- Giant covalent structures
- Line-bond representations
Using Silicon dioxide in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Chemistry GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge