Science Quiz Competition 5:

Question 1: Name the lightest metal found on earth?

Question 2: Name the constituents of Bronze?

Question 3: Natural magnets are made up of which mineral?

Question 4: What are chalcogens?

Question 5: Why 1^st group of periodic table is called alkali metals?

Answer 1: Lithium metal

Answer 2: Copper and Tin

Answer 3: Magnetite (Loadstone)

Answer 4: The elements generally used to form ores are called chalcogens. Group 16 elements (oxygen family) in periodic table belong to chalcogen family.

Answer 5: Because the oxides produced by 1^st group elements are alkaline (basic) in nature.


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