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☆☆☆☆☆A liquid with something dissolved in it
A semiconductor is a solid whose electrical conductivity is in between that of a conductor and that of an insulator, and can be controlled over a wide range, either permanently or dynamically.
Semiconductor materials can be elements (e.g. germanium, silicon), compounds (e.g. copper oxide, lead sulfide), or metal alloys (e.g. gallium arsenide, gallium aluminum indium phosphide).
A pure semiconductor material is a very poor conductor or even an insulator, but when impurities called dopants are added it can become a quite good conductor. There are two classes of dopants: N type and P type. N type dopants create negatively charged current carriers (i.e. free electrons) in the semiconductor, just like ordinary conductors use. P type dopants create positively charged current carriers (i.e. holes) in the semiconductor. (Note: dopants do no make the semiconductor material electrically charged.) Because semiconductors have two different types of current carrier (not just the one that ordinary conductors have), it is possible to create junctions between differently doped parts of semiconductor material that conduct in one direction but not the other, or due to quantum mechanical effects do other useful things.
Semiconductor is a material that has the electrical conductivity between that of a conductor and an insulator. Silicon, germanium and graphite are some examples of semiconductors.
Source : Physics and Radio-Electronics ( website)
it is a solid material that has conductivity somewhere between a metal and that of a good insulator, due to addition of some impurity or due to temperature. Most electronic components are semiconductors.
Temperature measures how fast molecules are moving or in scientific terms it measures the AVERAGE KINETIC ENERGY in a system. Temperature measures how fast molecules are moving. :):)
Alloys are useful (if this is what the question is getting at) because mixing elements of the periodic table alters their colligative properties.
i.e. mixing two metals could change substance's melting point, allowing it to more easily resist high temperatures. Also, mixing metals can change the way they bind together, and create an altogether stronger material than you can find using any single metal alone.They can improve a metal's properties
Solids made up of molecules
Ionic bonds
Adding a solute to a solution, or some liquid, causes the boiling point to increase.
Think about water, sometimes people throw salt in their water when they're boiling noodles. This causes the boiling point to increase so the water is actually at a higher temperature (although most of the time the amount of salt added isn't nearly enough to cause any measurable change).
Van der Waals forces
ions
Gases have the highest kinetic energy, followed by liquids, and then solids. -apex
A superconductor.
hydrogen bonding
Probable you think to the law of Avogadro.
A solid that has hydrogen bonding would melt the easiest.
Dirt is a heterogeneous mixture.
A base contain the hydroxyl group (OH)-.
