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Mixed Difficulty

TN-CHEM-GR4-18048 · v3.6

Electron Configuration

Grade 4 · Chemistry · Atomic Structure · CBSE

Grade

Grade 4

Subject

Chemistry

Topic

Atomic Structure

Subtopic

Electron Configuration

Curriculum

CBSE

Difficulty

Mixed

Time

35 minutes

Total marks

46

Student name

Teacher name

Date

Learning objectives

  • Recognise electron configuration accurately in chemistry contexts.
  • Explain the underlying rule of electron configuration in the student's own words.
  • Apply electron configuration 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 35 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.Write down one fact you already know about electron configuration.

    [1]
  2. 2.Name one fact you already know about electron configuration.

    [1]
  3. 3.Write down one fact you already know about electron configuration.

    [1]
  4. 4.Write down one fact you already know about electron configuration.

    [1]

Recall

Bloom: Remember · 4 marks

Complete from memory. No calculator, no notes.

  1. 1.List the key term used in electron configuration described here: item 1.

    [1]
  2. 2.Complete the key term used in electron configuration described here: item 2.

    [1]
  3. 3.Define the key term used in electron configuration described here: item 3.

    [1]
  4. 4.Complete the key term used in electron configuration described here: item 4.

    [1]

FreeMathWorksheet · TN-CHEM-GR4-18048 · v3.6

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

Page 1 of 4

FreeMathWorksheet · Grade 4 Chemistry

Electron Configuration

Basic Practice

Bloom: Understand · 5 marks

Work through each item. Show the step you used.

  1. 1.Work out part 1 using the rule for electron configuration.

    [1]
  2. 2.Complete part 2 using the rule for electron configuration.

    [1]
  3. 3.Match part 3 using the rule for electron configuration.

    [1]
  4. 4.Work out part 4 using the rule for electron configuration.

    [1]
  5. 5.Complete part 5 using the rule for electron configuration.

    [1]

Guided Practice

Bloom: Understand · 8 marks

The first step is given. Finish the reasoning.

  1. 1.Continue the working for part 1. Step 1 has been started for you.

    [2]
  2. 2.Using the first step given, finish part 2. Step 1 has been started for you.

    [2]
  3. 3.Using the first step given, finish 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-GR4-18048 · v3.6

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

Page 2 of 4

FreeMathWorksheet · Grade 4 Chemistry

Electron Configuration

Independent Practice

Bloom: Apply · 10 marks

No scaffolding. Set out your full method.

  1. 1.Calculate part 1 on electron configuration without help.

    [2]
  2. 2.Determine part 2 on electron configuration without help.

    [2]
  3. 3.Solve part 3 on electron configuration without help.

    [2]
  4. 4.Work out fully part 4 on electron configuration without help.

    [2]
  5. 5.Solve part 5 on electron configuration without help.

    [2]

Challenge Questions

Bloom: Analyse · 9 marks

Harder items. Attempt every one, even partially.

  1. 1.Show that the statement in part 1 about electron configuration.

    [3]
  2. 2.Deduce the statement in part 2 about electron configuration.

    [3]
  3. 3.Show that the statement in part 3 about electron configuration.

    [3]

FreeMathWorksheet · TN-CHEM-GR4-18048 · v3.6

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

Page 3 of 4

FreeMathWorksheet · Grade 4 Chemistry

Electron Configuration

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 electron configuration.

    [3]
  2. 2.In context, work out a real chemistry situation that depends on electron configuration.

    [3]

Reflection

Bloom: Create · 0 marks

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

  1. 1.Describe how confident you feel with electron configuration and what you will practise next.

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

    [—]

FreeMathWorksheet · TN-CHEM-GR4-18048 · v3.6

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

Page 4 of 4