Atomic Structure Review
A Grade 11 science worksheet reviewing the fundamental concepts of atomic structure, including subatomic particles, atomic models, and isotopes.
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Standards
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Atomic Structure Review
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Date:
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which subatomic particle has a positive charge and is found in the nucleus of an atom?
Electron
Neutron
Proton
Photon
2. The atomic number of an element is determined by the number of:
Electrons
Neutrons
Protons
Protons and Neutrons
3. Isotopes are atoms of the same element that have different numbers of .
4. The model of the atom describes electrons orbiting the nucleus in specific energy levels.
5. All atoms of a given element have the same mass number.
True
False
6. The electron cloud model suggests that electrons are found in fixed orbits around the nucleus.
True
False
7. Describe the main components of an atom and their respective charges and locations.
8. Explain the difference between atomic number and mass number.