Advertisements
Advertisements
Question
Compare the properties of metalloids with those of metals.
Solution
Comparing the Properties of Metalloids with those of Metals:
- State-
- Metals are solids at room temperature with the exception of mercury, which is liquid at room temperature.
- Metalloids are generally solids at room temperature
- Lustre-
- Metals have the quality of reflecting light from its surface and can be polished. Example Gold, Silver and Copper.
- They have metallic lustre and look like metals, but many show characteristic properties of weak non-metals.
- Conductivity-
- Metals are good conductors of heat and electricity.
- Metalloids are semi-conductors of electricity and show average transmission of heat.
- Malleability and ductile –
- Metals have the ability to withstand hammering and can be made into thin sheets known as foils.
- They are generally malleable and ductile. Silicon is not malleable or ductile, but and ductility is lustrous and acts as an electrical conductor under specific conditions.
APPEARS IN
RELATED QUESTIONS
What are metalloids?
Give two uses of Silicon
Give two uses of Tungsten
Fill in the blank
_________ is the hardest compound known to us
Write ‘true’ or ‘false’ for the following statement.
Sand is an oxide of silicon.
A metalloid used in the manufacture of microchips used in computer is :
The most ductile metal is _______.
Give the basic demarkation of the Modern Periodic Table into metals, metalloids and non-metals with special reference to halogens and noble gases.
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.
Name the elements recognised as metalloids.
State the uses of three different metalloids.
State a specific reason for using gold in jewellery
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.
The element which possesses the character of both metals and non metals are called ______.
______ is used as semiconductor.
Write three properties of metalloids.
Metalloids are ______ at room temperature.
