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تبصرے
10 تبصرے
Describe the physical and chemical properties of Group 1 metals and trends in their reactions with oxygen and water.
Describe the trends in reactivity of Group 7 elements and how they react with different Group 7 elements and elements from other groups.
Describe the common properties of metals and non-metals and how different uses relate to their properties.
Define a compound, write compound formulae and name compounds based on the atoms they contain.
Describe what is meant by 'conservation of mass' and apply this to chemical and physical changes.
Understand that elements have different properties and how the periodic table has been developed over time according to our knowledge of these properties.
Understand the difference between physical and chemical changes and write equations using word and symbol equations.
Define an element and learn how different elements are represented by chemical symbols.
Describe how multicellular organisms are arranged into tissues, organs and organ systems.
Define diffusion and explore factors that affect the rate of diffusion in the human body.