Occurrence of Metals and Non-metals in Nature
Chemistry ⇒ Metals and Non-metals
Occurrence of Metals and Non-metals in Nature starts at 6 and continues till grade 12.
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See sample questions for grade 8
Describe the difference between a mineral and an ore.
Explain why highly reactive metals are not found in their free state in nature.
Explain why metals like sodium and potassium are stored under oil after extraction.
Explain why noble metals like gold and platinum are found in their native state in nature.
Name one metal that is commonly found dissolved in seawater.
Name one non-metal that is essential for the formation of proteins in living organisms.
Name one non-metal that is found in nature as a yellow solid near volcanic regions.
Name two metals that are found in nature in their native (free) state.
Which non-metal is essential for respiration in living organisms?
Describe how the occurrence of metals in nature is related to their position in the reactivity series.
Explain why chlorine is not found in its elemental form in nature, but is commonly found as compounds such as sodium chloride.
Explain why some metals, such as aluminium, are never found in their free state in nature, even though they are highly abundant in the Earth's crust.
