Chapter 2: The Structure of the Atom
A. Knowledge (Definition, meaning and facts) | Check |
- State the kinetic theory of matter.
State one example to support the kinetic theory of matter
- What are atom, molecule and ion?
- What is melting point?
- Define proton number and nucleon number.
- State the meaning of isotopes.
- State the uses of isotopes such as carbon-14 and cobalt-60.
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B. Understanding / Application / Analysis | |
- Explain why the temperature remains unchanged during the melting process.
- Explain why the temperature remains unchanged during the freezing process.
- A solid compound is heated until it converts into gas. Explain the changes in energy content, forces of attraction between the particles, and arrangement of particles.
- State the main subatomic particles of an atom.
Compare and contrast the relative atomic mass and the relative charge of the subatomic particles of the atom.
- is the symbol of aluminium.
(a) Determine the number of neutron of aluminium.
(b) Draw the electron arrangement of aluminium.
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C. Synthesis (Experiment) | |
- Solid Z has a melting point of 65oC. Describe a laboratory experiment to determine the melting point of Z. Your answer should show how the melting point of Z is determined.
- Compound W has a freezing point of 82oC. Describe a laboratory experiment to determine the freezing point of W.
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