As we know, metalloids exhibit the properties of metals as well as non-metals.
Arsenic, antimony, silicon, boron, etc.
- Metalloids are solid at room temperature.
- They can form alloys with other metals.
- Some metalloids (silicon and germanium) can behave as electrical conductors under specific conditions. Hence, they are called Semiconductors.
- Silicon appears lustrous; however, it is not malleable nor ductile (it is brittle, a characteristic of some non-metals).
- It is a bad conductor of heat and electricity than metals.
- The physical properties of metalloids tend to be metallic, but their chemical properties tend to be non-metallic.
- Silicon is used in electronic devices such as cell phones, calculators, etc.
- Boron is used in fireworks for providing green colour and as a fuel for ignition in the rocket.