Ademia
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Physics
The atomic structure
This topic introduces learners to the basic structure of an atom. Students will explore the three main subatomic particles: protons, neutrons, and electrons—including their charges, locations within the atom, and relative masses. The concept of the nucleus and electron shells or energy levels will be explained. Learners will also understand how the atomic number and mass number relate to the number of subatomic particles, and how these determine the identity and properties of elements. The topic lays the foundation for understanding chemical bonding, reactions, and the periodic table.
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