Ions and Atoms Worksheet
Grade 12 Science worksheet covering the fundamental concepts of ions and atoms, including atomic structure, isotopes, and ion formation.
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Ions and Atoms: Grade 12 Chemistry
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Read each question carefully and provide the best answer based on your understanding of atomic structure, isotopes, and ion formation.
1. Which of the following statements accurately describes the relationship between an atom and an ion?
An ion is an atom that has gained or lost protons.
An atom is an ion that has a neutral charge.
An ion is an atom that has gained or lost electrons.
Atoms and ions are completely different types of particles.
2. An isotope of an element differs in the number of:
Protons
Electrons
Neutrons
Positrons
3. The atomic number of an element is determined by the number of in its nucleus.
4. A positively charged ion is called a(n) , while a negatively charged ion is called a(n) .
5. Explain how an atom becomes a cation and an anion.
6. Describe the key differences between a neutral atom and its corresponding isotope.
7. All atoms of the same element have the same number of neutrons.
True
False
8. The mass number of an atom is the sum of its protons and electrons.
True
False
Match the term with its correct definition.
9. Proton
a. Negatively charged subatomic particle
10. Electron
b. Subatomic particle with no charge
11. Neutron
c. Positively charged subatomic particle
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