In this chapter, we will be learning about matter and atomic structure. We will start by understanding the basic concepts of matter, such as how to describe it and explain changes in its state.
Next, we will explore the development of the atomic model, including the subatomic particles found in atoms and their relative mass and charge. We will also study the structure of the atom, including the proton number, nucleon number, and the number of electrons in an atom.
Lastly, we will learn about isotopes and their uses, including how to deduce their meaning and calculate the relative atomic mass of isotopes.
• Describing matter
• Explaining changes of state of matter
• Determining the melting point and boiling point of naphthalene through activities
• Stating the subatomic particles in atoms of various elements
• Compare and contrast relative mass and relative charge of proton, electron and neutron
• Sequencing the atomic model structures based on Dalton, Thomson, Rutherford, Bohr and Chadwick Atomic Model
• Defining proton number and nucleon number
• Determining nucleon number, proton number and number of electrons in an atom
• Writing standard representation of an atom
• Developing diagram of atomic structure and electron arrangement
• Deducing meaning of isotopes
• Calculating relative atomic mass of isotopes
• Justifying the uses of isotopes in various fields
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