Physical and Chemical Differences Between Metals and Non-metals
Chemistry ⇒ Metals and Non-metals
Physical and Chemical Differences Between Metals and Non-metals starts at 6 and continues till grade 12.
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See sample questions for grade 7
Context: A student is given two elements. One is shiny, can be drawn into wires, and conducts electricity. The other is dull, brittle, and does not conduct electricity. Which one is likely a metal?
Describe one difference between the appearance of metals and non-metals.
Describe the difference in the way metals and non-metals react with oxygen.
Explain why metals are used for making electrical wires.
Explain why non-metals are not used for making wires.
Explain why non-metals are used in making the tip of a matchstick.
Name one non-metal that is a good conductor of electricity.
State one reason why metals are used for making cooking utensils.
Why are non-metals not used for making bells?
Context: A laboratory experiment involves heating a strip of magnesium (a metal) and a piece of sulfur (a non-metal) in separate test tubes. After heating, magnesium forms a white powder, while sulfur forms a gas with a strong odor. Explain the difference in the type of oxides formed by metals and non-metals in this experiment.
Context: A student is given two unknown elements. Element X is hard, shiny, and makes a ringing sound when struck. Element Y is soft, dull, and breaks easily when bent. The student is asked to identify which element is more likely to form positive ions in chemical reactions. Which element should the student choose and why?
Describe how the electrical conductivity of graphite (a non-metal) is different from that of most other non-metals and explain why this is an exception.
Explain why metals are generally malleable and ductile, while non-metals are brittle. Relate your answer to the arrangement of particles in each type of element.
