Which important change in electronic devices, such as televisions and computers, is a result of the use of metalloids as semicon
ductors? A) Electronic devices have become smaller.
B) Electronic devices are now more brittle.
C) Electronic devices now use more energy.
D) Electronic devices have become more expensive.
metalloids are the substances which are not metal and also are not non-metal they have the property of both metals and non-metals.
metalloids example are silicon, Germanium, Arsenic (As) etc.
Usage of metalloids as semiconductor has decreases the size of the circuits which leads to the shrink the size of many electronic devices such as TV, mobile etc.
Option (A) Electronic devices have become smaller.
Explanation:
Semiconductor devices are the devices which are based on the properties of the semiconductor materials like germanium, silicon, gallium and arsenide. The commonly used materials in electronic devices are the silicon and germanium because of their low cut off voltages i.e 0.7 v and 0.3 v. Semiconductor materials made the electronic devices smaller as they replaced the Vacuum tubes which was bulky with high operating voltage, high power consumption.
Alkali metal hydroxides can be used to test the identity of metals in certain salts. The colour of the precipitate will help identify the metal : Calcium hydroxide is soluble; no precipitate is formed.
