Periodic patterns written questions
Answer G3 Science Chemistry questions on periodic patterns, groups and metals, reviewing reaction evidence with marking guidance.
Learning goals
- Describe the Periodic Table as the elements arranged in order of increasing proton number
- Relate an element's position in the Periodic Table to its proton number and electronic configuration
- Explain why elements in the same group are similar using their electronic configurations
- Describe the change from metallic to non-metallic character across a period
- Relate the number of outer (valence) electrons to metallic or non-metallic character
- Predict the properties of Group 1 and Group 17 elements from the Periodic Table
- Describe lithium, sodium and potassium as soft, low-density metals with trends in melting point and reaction with water
- Describe chlorine, bromine and iodine as diatomic non-metals with trends in colour, state and displacement of other halide ions
- Explain why Group 18 elements are unreactive using their electronic configurations
- Place common metals and hydrogen in order of reactivity from their reactions with water, steam and dilute hydrochloric acid
- Deduce an order of reactivity from experimental results
- Relate how easily a metal is extracted from its ore to its position in the reactivity series
- Describe the conditions needed for iron to rust and how a barrier, such as paint, grease or plastic, prevents it
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Beyond the syllabus: optional enrichment that does not count towards your progress.