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TN-CHEM-A-LVL-41389 · v1.3

Subatomic Particles

A Level · Chemistry · Atomic Structure · FBISE

Grade

A Level

Subject

Chemistry

Topic

Atomic Structure

Subtopic

Subatomic Particles

Curriculum

FBISE

Difficulty

Core

Time

30 minutes

Total marks

54

Student name

Teacher name

Date

Learning objectives

  • Recognise subatomic particles accurately in chemistry contexts.
  • Explain the underlying rule of subatomic particles in the student's own words.
  • Apply subatomic particles 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

  1. Write your name, your teacher's name and the date in the header.
  2. Answer every question in the space provided. Continue on the back if needed.
  3. Show all working — method marks are awarded even when the final answer is wrong.
  4. Aim to finish in about 30 minutes.
  5. Complete the reflection box at the end before you hand the sheet in.

Warm-up

Bloom: Remember · 4 marks

Answer quickly. These check you are ready for the topic.

  1. 1.Circle one fact you already know about subatomic particles.

    [1]
  2. 2.Circle one fact you already know about subatomic particles.

    [1]
  3. 3.Write down one fact you already know about subatomic particles.

    [1]
  4. 4.Write down one fact you already know about subatomic particles.

    [1]

Recall

Bloom: Remember · 4 marks

Complete from memory. No calculator, no notes.

  1. 1.Label the key term used in subatomic particles described here: item 1.

    [1]
  2. 2.Label the key term used in subatomic particles described here: item 2.

    [1]
  3. 3.Label the key term used in subatomic particles described here: item 3.

    [1]
  4. 4.Define the key term used in subatomic particles described here: item 4.

    [1]

FreeMathWorksheet · TN-CHEM-A-LVL-41389 · v1.3

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 1 of 4

FreeMathWorksheet · A Level Chemistry

Subatomic Particles

Basic Practice

Bloom: Understand · 5 marks

Work through each item. Show the step you used.

  1. 1.Complete part 1 using the rule for subatomic particles.

    [1]
  2. 2.Identify part 2 using the rule for subatomic particles.

    [1]
  3. 3.Complete part 3 using the rule for subatomic particles.

    [1]
  4. 4.Complete part 4 using the rule for subatomic particles.

    [1]
  5. 5.Complete part 5 using the rule for subatomic particles.

    [1]

Guided Practice

Bloom: Understand · 8 marks

The first step is given. Finish the reasoning.

  1. 1.Using the first step given, finish part 1. Step 1 has been started for you.

    [2]
  2. 2.Complete the method for part 2. Step 1 has been started for you.

    [2]
  3. 3.Complete the method for part 3. Step 1 has been started for you.

    [2]
  4. 4.Complete the method for part 4. Step 1 has been started for you.

    [2]

FreeMathWorksheet · TN-CHEM-A-LVL-41389 · v1.3

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 2 of 4

FreeMathWorksheet · A Level Chemistry

Subatomic Particles

Independent Practice

Bloom: Apply · 10 marks

No scaffolding. Set out your full method.

  1. 1.Work out fully part 1 on subatomic particles without help.

    [2]
  2. 2.Determine part 2 on subatomic particles without help.

    [2]
  3. 3.Work out fully part 3 on subatomic particles without help.

    [2]
  4. 4.Determine part 4 on subatomic particles without help.

    [2]
  5. 5.Calculate part 5 on subatomic particles without help.

    [2]

Challenge Questions

Bloom: Analyse · 9 marks

Harder items. Attempt every one, even partially.

  1. 1.Prove the statement in part 1 about subatomic particles.

    [3]
  2. 2.Show that the statement in part 2 about subatomic particles.

    [3]
  3. 3.Deduce the statement in part 3 about subatomic particles.

    [3]

FreeMathWorksheet · TN-CHEM-A-LVL-41389 · v1.3

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 3 of 4

FreeMathWorksheet · A Level Chemistry

Subatomic Particles

Real-life Application

Bloom: Apply · 6 marks

Use the skill in context. State units in your answer.

  1. 1.Apply a real chemistry situation that depends on subatomic particles.

    [3]
  2. 2.Use the information to decide a real chemistry situation that depends on subatomic particles.

    [3]

Critical Thinking

Bloom: Evaluate · 8 marks

Explain your reasoning in full sentences.

  1. 1.Explain why a student's method for subatomic particles is or is not efficient.

    [4]
  2. 2.Explain why a student's method for subatomic particles is or is not efficient.

    [4]

Reflection

Bloom: Create · 0 marks

Not marked. Answer honestly — this guides your next worksheet.

  1. 1.Record how confident you feel with subatomic particles and what you will practise next.

    [—]
  2. 2.Describe how confident you feel with subatomic particles and what you will practise next.

    [—]

FreeMathWorksheet · TN-CHEM-A-LVL-41389 · v1.3

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 4 of 4