Chemistry GCSE
Standard form and unit conversion
What Standard form and unit conversion means in Chemistry GCSE, as defined for AQA.
Definition of Standard form and unit conversion
Check what you remember
Read the wording for your board, then hide it and explain Standard form and unit conversion in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A way of writing very small numbers and converting between units, used to express atomic dimensions such as 1 × 10⁻¹⁰ m.
Topics that use Standard form and unit conversion
- Size and mass of atoms (AQA GCSE)
Related terms
- Relative mass of subatomic particles
- Atomic dimensions in metres
- Isotope notation
- Mass number calculation
- Nanometres as a unit of length
- Nucleus as the mass centre
- Scale and size of atoms
Using Standard form and unit conversion 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