Question
What are metalloids? Name two metalloids.

Answer

The elements whose properties are intermediate between the properties of metals and nonmetals are called Metalloids. For example, Boron, Silicon and Germanium are metalloids. Heat and electricity can pass through metalloids but not as easily as in metals. Metalloids are also called semiconductors.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A glass rod is rubbed with a silk cloth and an inflated rubber balloon is rubbed with a woollen cloth. Now, out of glass rod, silk cloth, rubber balloon and woollen cloth:
$i.$ which two objects acquire negative charge?
$ii.$ which two objects acquire positive charge?
For discussion. Despite being one of the growing economies, our country still has a large section of population going hungry and malnourished. Do you think an efficient crop production mechanism is the only solution to this? Discuss in the class what else needs to be done to root out hunger and malnutrition from our country.
Where are chromosomes found in a cell? State their function.
Where are the following glands located in the human body?
$i.$ Pituitary.
$ii.$ Thyroid.
$iii.$ Pancreas.
$iv.$ Adrenals.
What is irrigation ? Describe two methods of irrigation which conserve water .
Describe how coal was formed. What is this process called?
Match the terms of column $A$ correctly with the phrases given in column $B.$
  Column I   Column II
$(i)$ Polyester $(a)$ Prepared by using wood pulp
$(ii)$ Teflon $(b)$ Used for making parachutes and stockings
$(iii)$ Rayon $(c)$ Used to make non-stick cookwares
$(iv)$ Nylon $(d)$ Fabrics do not wrinkle easily
What is irrigation ? Describe two methods of irrigation which conserve water .
What are the different methods to reduce friction?
Paheli bought a statue made of copper. To her surprise it acquired a dull green coating after a couple of months. Explain the reason.