Classwork Worksheet
TN-CHEM-SAT-84867 · v3.8
Isotopes
SAT · Chemistry · Atomic Structure · National Curriculum (UK)
Grade
SAT
Subject
Chemistry
Topic
Atomic Structure
Subtopic
Isotopes
Curriculum
National Curriculum (UK)
Difficulty
Core
Time
20 minutes
Total marks
44
Student name
Teacher name
Date
Learning objectives
- Recognise isotopes accurately in chemistry contexts.
- Explain the underlying rule of isotopes in the student's own words.
- Apply isotopes to multi-step and unfamiliar problems.
- Justify a chosen method and identify errors in another student's work.
Skills assessed
- Fluency and recall
- Method and setting out
- Reasoning and justification
- Problem solving in context
- Self-assessment
Instructions
- Write your name, your teacher's name and the date in the header.
- Answer every question in the space provided. Continue on the back if needed.
- Show all working — method marks are awarded even when the final answer is wrong.
- Aim to finish in about 20 minutes.
- Complete the reflection box at the end before you hand the sheet in.
Warm-up
Bloom: Remember · 3 marks
Answer quickly. These check you are ready for the topic.
1.State one fact you already know about isotopes.
[1]2.Write down one fact you already know about isotopes.
[1]3.Circle one fact you already know about isotopes.
[1]
Recall
Bloom: Remember · 3 marks
Complete from memory. No calculator, no notes.
1.Complete the key term used in isotopes described here: item 1.
[1]2.Complete the key term used in isotopes described here: item 2.
[1]3.List the key term used in isotopes described here: item 3.
[1]