Building Atoms Worksheet
Explore the fundamental particles that make up atoms and how they are arranged.
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Building Atoms: The Basics
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Read each question carefully and answer to the best of your ability. Use the provided image to help you understand the structure of an atom.
Observe the diagram of an atom below:
1. What are the three main subatomic particles that make up an atom?
Protons, photons, and electrons
Protons, neutrons, and electrons
Neutrons, nuclei, and electrons
Electrons, elements, and protons
2. Which subatomic particle carries a positive charge?
Electron
Neutron
Proton
Photon
3. The center of an atom is called the , and it contains protons and .
4. Electrons orbit the nucleus in specific energy levels or .
5. The number of determines the atomic number of an element.
6. All atoms of the same element have the same number of neutrons.
True
False
7. Electrons have a much larger mass than protons or neutrons.
True
False
8. Explain how the number of protons, neutrons, and electrons determines the identity and properties of an atom.