Atomic Number, Mass Number and Isotopes [Worksheet]

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• Atomic number
• Mass number
• Isotopes

• Unit outline.
• Cloze activity (fill in the blanks).
• Short-answer questions.
• Extension questions.
• Topics for further research.
• Teacher version containing complete answers.

• Define atomic number, with examples.
• Define mass number, with examples.
• Explain what an isotope is.
• Compare different isotopes of an element.
• Draw and interpret diagrams illustrating different isotopes.
• Demonstrate how the names and symbols of isotopes are written.

This worksheet is included in the , which contains the following worksheets:

Ions and Ionic Compounds

Balanced Chemical Equations

Acids and Bases

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