Ion Formation Worksheet
Explore the basics of ion formation, including atomic structure, valence electrons, and the creation of cations and anions, suitable for Grade 7 Science.
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Ion Formation Worksheet
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Read each question carefully and answer to the best of your ability. Use the provided space for your answers.
1. What subatomic particle carries a negative charge?
Proton
Neutron
Electron
Nucleus
2. An atom that *loses* electrons becomes a:
Anion
Cation
Isotope
Molecule
3. The outermost electrons of an atom are called electrons.
4. Atoms form ions to achieve a stable outer electron shell, often with electrons.
5. An atom that *gains* electrons becomes a negatively charged ion called an .
6. All atoms naturally have a neutral charge.
True
False
7. The number of protons in an atom changes when it forms an ion.
True
False
8. Explain the difference between a cation and an anion.
9. Why do atoms gain or lose electrons to become ions?
10. Observe the image of an atom below. Based on your understanding of ion formation, draw what this atom would look like if it lost one electron. Label the charge of the resulting ion.
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