Module 1 | The chemical Earth
Focus 3: Elements in Earth materials are present mostly as compounds because of interactions at the atomic level
Lesson 1 | Atomic structure
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Identify that matter is made of particles that are continuously moving and interacting.
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Describe qualitatively the energy levels of electrons in atoms.
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Describe atoms in terms of mass number and atomic number.
Lesson 2 | Ions and ionic compounds
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Describe the formation of ions in terms of atoms gaining or losing electrons.
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Apply the Periodic Table to predict the ions formed by atoms of metals and non-metals.
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Construct ionic equations showing metal and non-metal atoms forming ions.
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Describe the formation of ionic compounds in terms of the attraction of ions of opposite charge.
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Apply Lewis electron dot structures to:
– the formation of ions
– the electron sharing in some simple molecules -
Construct formulae for compounds formed from:
– ions -
Analyse information by constructing or using models showing the structure of ionic compounds.
Lesson 3 | Molecules and covalent compounds
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Describe molecules as particles which can move independently of each other.
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Distinguish between molecules containing one atom (the noble gases) and molecules with more than one atom.
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Describe the formation of covalent molecules in terms of sharing of electrons.
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Apply Lewis electron dot structures to:
– the electron sharing in some simple molecules -
Construct formulae for compounds formed from:
– atoms sharing electrons -
Analyse information by constructing or using models showing the structure of covalent compounds.
