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Apart from Silicon, the following elements are considered as semi-metal(metalloids) :-
- Boron
- Germanium
- Arsenic
- Antimony
- Tellurium
- Polonium
However, not all sources consider Polonium to be metalloid whereas some allotropes of elements like phosphorous, selenium etc. also show metalloidic behavior.
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Is a semi metal hard?
Their hardness will be less than that of metals but more than that of non metals. Hence the name, semi metals or metalloids.
What non metal has 4 valence electronsproperties similar to carbon and an atomic mass slightly less than phosphorus?
The element specified is silicon, but it is generally regarded as at least a metalloid if not a metal.
Which the most abundant metal in the Earth crust?
Depends. What do you consider a metal?If you're an astronomer, it's oxygen. Chemists will laugh at you for saying this, but astronomers (well, some astronomers) divide the elements into "hydrogen, helium, and everything else, which for short we'll call 'metals'". On the cosmological scale, there's some justification for this, as hydrogen and helium are a lot more abundant in the universe as a whole than anything else.Even if we exclude oxygen as a clear non-metal (in chemical terms), the next most abundant element is silicon, and it's possible to get into all kinds of arguments over whether silicon is a "metal" or not.The next one after silicon is aluminium, and most people would agree that aluminium is a metal, though a few might quibble and say it's really a metalloid/semi-metal along with silicon.After that comes iron, which is the most abundant element in the crust where no one can reasonably make a case that it's anything but a metal.
Why leakage current of germanium is more than silicon?
Because the space charge region or depletion region is small in germanium compared to silicon hence leakage current is more in germanium than silicon
What is the mantle mostly made up of?
The earth's mantle is not made of metal but is a mixture of many somewhat molten rocks, most as oxides, meaning the mantle may be more oxygen than metal. The metals it has the most of are magnesium, iron, and aluminum. There's also lots of silicon, which is not really a metal.
Are there any pure forms of semi conductors other than germanium and silicon?
gaAs is semiconductor
Why is silicon a better semiconductor than germanium?
Silicon is a good semi conductor than germanium because silicon is more readily available, cheaper and stable.
Why is silicon unusual?
Silicon is unusual because:It has a very high melting point for a non metalIt can conduct electricity better than the other non metals, but not quite as much as a metal.
Is a semi metal hard?
Their hardness will be less than that of metals but more than that of non metals. Hence the name, semi metals or metalloids.
Does iron form more covalent bonding than silicon?
No. Since silicon is a non-metal, it has a greater tendency to engage in covalent bonding as compared to iron
Why is silicon a good heat conductor but a poor electrical conductor?
Metals are actually good conductors of both heat and electricity... but silicon is a semi-conductor. Unlike metals, which are good electrical and heat conductors, crystalline solids such as diamond and semiconductors such as silicon are good heat conductors but poor electrical conductors. This is their nature... you can't change it :-)
Which city is called the silicon city of India?
because it produces much silicon than other places in india
What has the author Matara Achchgige Peter written?
Matara Achchgige Peter has written: 'Studies of metal-insulator-semiconductor systems using oxide complexes other than silicon dioxide'
Is silicon dioxide a sulfite?
No, Silicon dioxide does not dissolve in water. Better said, much less than glass does (glass is solid solution of silicon dioxide and alkaline metal oxides)
Is arsenic a metal non-metal or semi-metal?
Arsenic is usually classified as a metalloid. The chemistry of arsenic is predominately nonmetallic but it shows less anionic behavior than ordinary nonmetals. Liquid arsenic is a semiconductor. It can form many metal alloys but most of them are brittle.
What is another type of metal other than gold?
the answer is silver which is a precious metal other than gold or another type of metal.
What is the difference between the chemical formula of sand and glass?
Sand is usually nearly pure silicon dioxide but may have other metal oxides also. The same is true for glass, but the fraction of material other than silicon dioxide is usually larger for glass. Neither of them is a pure compound; therefore neither of them has any exact chemical formula.
