MAKE IT YOURS
A world for every learner
Choose a grade to discover its colours and creative world.
Grade 10 Electron Shells & Valence Electrons Worksheet with Answers
Grade 10 (US) · Year 11 (UK) · Class 10 (India) · Chemistry
Unit 1: Atomic StructureElectronsNGSS HS-PS1-1
Arranging electrons in shells for the first 20 elements and finding valence electrons. This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
- Answer keys checked by code
- No ads, ever
- No student accounts needed
- Safety & privacy
Practice Sheetaethelsystems.comElectron Shells & Valence Electrons
Grade 10 · Chemistry
Name
Class
Date
Learning goal: Electrons · NGSS HS-PS1-1
Directions: Read each question carefully and write your answer on the line. Use the diagram to help you.
How many valence electrons does beryllium (Be, atomic number 4) have?
Answer: 2
RememberPeriodic table trends
- 1
How many valence electrons does lithium (Li, atomic number 3) have?
- 2
How many valence electrons does nitrogen (N, atomic number 7) have?
- 3
How many electron shells does a argon atom (atomic number 18) have?
- 4
How many electron shells does a sulfur atom (atomic number 16) have?
- 5
How many electron shells does a lithium atom (atomic number 3) have?
- 6
Write the electron arrangement (electrons per shell) for boron, atomic number 5.
- 7
Write the electron arrangement (electrons per shell) for sodium, atomic number 11.
- 8
Write the electron arrangement (electrons per shell) for phosphorus, atomic number 15.
- 9
How many valence electrons does aluminum (Al, atomic number 13) have?
- 10
How many valence electrons does chlorine (Cl, atomic number 17) have?
- 11
How many electron shells does a chlorine atom (atomic number 17) have?
- 12
Write the electron arrangement (electrons per shell) for nitrogen, atomic number 7.
★ Challenge corner for fast finishers
Why does a spinning ice skater spin faster when she pulls her arms in?
How did I do?
Teacher's comments
Free printable worksheets with answer keys · aethelsystems.com/worksheets/chemistry/10/electron_config
Answer key — Electron Shells & Valence Electrons (Grade 10)
- 1.1
- 2.5
- 3.3
- 4.3
- 5.2
- 6.2, 3
- 7.2, 8, 1
- 8.2, 8, 5
- 9.3
- 10.7
- 11.3
- 12.2, 5
- ★conservation of angular momentum
Answer key (click to show)
- 1.1
- 2.5
- 3.3
- 4.3
- 5.2
- 6.2, 3
- 7.2, 8, 1
- 8.2, 8, 5
- 9.3
- 10.7
- 11.3
- 12.2, 5
- ★conservation of angular momentum (challenge corner)
Need another Electron Shells & Valence Electrons worksheet?
Generate unlimited fresh versions at easy, medium or hard difficulty, each with its own answer key. Free during our launch — no card needed.
Create a free accountHow to use this worksheet
- Use it for revision before a test, as homework, or as a timed practice set.
- Students can self-mark with the answer key and note which question types they got wrong.
- Generate several versions of the same topic for spaced practice in the weeks before an exam.
Related worksheets
Electron Shells & Valence Electrons in other Grade 10 courses
More Grade 10 Chemistry worksheets
Can't find what you need? Tell us which worksheet to make next.
Frequently asked questions
Does this Grade 10 Electron Shells & Valence Electrons worksheet come with answers?
Yes. The full answer key is on this page, and it prints on its own page after the questions. Every answer is calculated or checked by code rather than written by an AI model, so the key is always correct.
How do I print it or save it as a PDF?
Click "Download PDF" to save a ready-to-print PDF with the answer key on the last page, or click "Print" to send the worksheet and answer key straight to your printer.
Can I get a different Electron Shells & Valence Electrons worksheet?
Yes. Create a free account to generate as many fresh Grade 10 Electron Shells & Valence Electrons worksheets as you like, at easy, medium or hard difficulty, each with its own answer key.
Is this worksheet free?
Yes. This worksheet is free to print, and Practice Sheet is free to use during our launch with no card needed.