question archive Use examples and include diagrams and images where appropriate ·     Explain why the atomic radius decreases across a period and increases down a group [2] ·     How does the reactivity down group 1 and 7 differ and how is this related to the atomic radius of these elements? [4] ·     Describe the trend in electronegativity of the elements [2] ·     Explain, with the help of examples, how electronegativity can affect the properties of compounds

Use examples and include diagrams and images where appropriate ·     Explain why the atomic radius decreases across a period and increases down a group [2] ·     How does the reactivity down group 1 and 7 differ and how is this related to the atomic radius of these elements? [4] ·     Describe the trend in electronegativity of the elements [2] ·     Explain, with the help of examples, how electronegativity can affect the properties of compounds

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Use examples and include diagrams and images where appropriate

·     Explain why the atomic radius decreases across a period and increases down a group [2]

·     How does the reactivity down group 1 and 7 differ and how is this related to the atomic radius of these elements? [4]

·     Describe the trend in electronegativity of the elements [2]

·     Explain, with the help of examples, how electronegativity can affect the properties of compounds. [4]

·     Avogadros no is an important concept in chemistry. Describe the discovery of this no and how it can be experimentally determined. [5]

 

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