Atoms and Elements - Chemistry Worksheet for Grade 10
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General
3 questions
~6 mins
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About This Worksheet
A medium difficulty Science worksheet on atoms_elements for grade 10 students. Includes questions on Atoms and Atomic Structure, Electron Configuration and Shells, Elements and Their Properties.
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Atoms and Elements - Chemistry Worksheet for Grade 10
Subject: GeneralGrade: General
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Atoms and Elements - Chemistry Worksheet for Grade 10
Instructions: Answer all questions carefully. Choose the correct option for multiple-choice questions and provide detailed explanations for short answer questions.
A
Atoms and Atomic Structure
1.
Which subatomic particle has a positive charge?
[1 mark]2.
Describe the main difference between neutrons and electrons in an atom.
[2 marks]3.
An atom has 11 protons, 12 neutrons, and 11 electrons. What is its atomic number and atomic mass?
[2 marks]B
Electron Configuration and Shells
1.
How many electrons can the third electron shell hold?
[1 mark]2.
Write the electron configuration for a neutral oxygen atom.
[2 marks]C
Elements and Their Properties
1.
Which element has the atomic number 6, and what are its main properties?
[2 marks]D
Periodic Table Organization
1.
Where are the alkali metals located on the periodic table?
[1 mark]2.
What is the significance of elements in the same group of the periodic table?
[2 marks]E
Isotopes and Atomic Mass
1.
An element has two isotopes: one with a mass of 10 amu and 90% abundance, and another with a mass of 11 amu and 10% abundance. What is the approximate atomic mass of this element?
[2 marks]F
Electron Energy Levels
1.
Explain why electrons occupy specific energy levels or shells in an atom.
[2 marks]Quick Actions
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Details
- Created
- 9/15/2025
- Updated
- 12/29/2025
- Type
- worksheet