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Chemistry CBSE Live product
Class 7
The World of Metals and Non-metals
Properties of materials
8.
Properties of metals
Question:
3
m.
Answer the following questions:
1.
What are the different physical properties of metals?
i.
What is mean by ductility?
The ability of the metals to be beaten into thin sheets
The ability of the metals to be drawn into thin wires
The ability of the metals to shine
The ability of the metals to make sound
Example:
Oxygen
Mercury
Copper
Sodium
ii.
Why sodium and potassium cannot be used for making heavy tools?
They are vey strong and least reactive metals
They are very soft and least reactive metals
They are very hard and least reactive metals
They are very soft and highly reactive metals
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