Chapter 1: Atomic structure and the periodic table
Lesson title
Overarching objectives
1
Elements and compounds
Use chemical symbols and formulae to describe elements and compounds.
2
Atoms, formulae and equations
Know that the atoms in an element are all the same and use symbols and formulae to represent elements and compounds and simple chemical reactions.
3
Mixtures
Understand how different techniques are used to separate mixtures.
4
Changing ideas about atoms
Describe how ideas about atoms changed as new evidence became available.
5
Modelling the atom
Model atoms as positive nuclei surrounded by negative electrons.
6
Relating charges and masses
Describe the similarities and differences between protons, neutrons and electrons.
7
Sub-atomic particles
Use atomic numbers and mass numbers to determine the numbers of sub-atomic particles in atoms.
8
Electronic structure
Describe the arrangement of electrons in shells or energy levels.
9
The periodic table
Describe the link between electronic structure and an element’s position in the periodic table.
10
Developing the periodic table
Describe how Mendeleev developed the periodic table.
11
Comparing metals and nonmetals
Describe the physical and chemical differences between metals and nonmetals.
12
Metals and non-metals
Distinguish metals from non-metals using their position in the periodic table and ability to form positive ions.
13
Key concept: The outer electrons
Understand how outer electrons can be transferred or shared.
14
Exploring Group 0
Explain their lack of reactivity and trends in their physical properties.
15
Exploring Group 1
Describe their high reactivity and trends in their chemical properties.
16
Exploring Group 7
Describe their high reactivity and trends in their physical and chemical properties.
17
Reaction trends and prediction reactions
Explain trends in reactivity in Groups 1 and 7 and changes across a period.
18
Transition metals
Describe similarities and differences between transition metals and contrast them with those of Group 1 elements.
19
Maths skills: Standard form and making estimates
Recognise and use standard form in calculations.
Collins GCSE Science
2
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