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प्रश्न
What are metalloids?
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उत्तर
Metalloids are the elements which show some properties of metals and some properties of non-metals. They all are solids. They are silicon, boron, arsenic, antimony, germanium, tellurium and polonium.
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संबंधित प्रश्न
Give two uses of Silicon
Give two uses of Antimony
Give two uses of Tungsten
Write ‘true’ or ‘false’ for the following statement.
Antimony is a metal.
Write ‘true’ or ‘false’ for the following statement.
Sand is an oxide of silicon.
A metalloid used to make glass :
A metalloid used in the manufacture of microchips used in computer is :
Give a reason why the non-metals – halogens and noble gases are placed in separate groups of the periodic table with special reference to their difference in properties.
State what are metalloids.
Compare the properties of metalloids with those of metals.
State the uses of three different metalloids.
State a specific reason for using steel in automobiles.
State whether the statement given below is true or false. If false write the correct statement.
Silicon is an example of a metalloid.
Write down the properties of metalloids.
______ is used as semiconductor.
Give two examples for metalloids.
Write three properties of metalloids.
