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I presume that we are here talking about a silicon semiconductor. The point of using a group 3 or a group 5 element is to use something that does not interfere too much with the crystal structure of silicon, but that has an extra electron for n-type doping, or absence of an electron for p-type doping. Thus for p-type doping we would use aluminium or gallium or scandium, because each of these has only 3 valence electrons instead of 4, while for n-type doping we would use phosphorus or arsenic or antimony, because these are elements with 5 valence electrons.
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What element is the 3rd element?
lithium is the third element. It is placed in group-1
What is the valency of the last element in the 3rd group of modern periodic table?
The valency is 3+
What information is given by the noble gas notation Ne 3s2?
The element is magnesium with an atomic number 12.The element belongs to the 3rd period, with two valence electrons in the s orbitals. The element is an example of alkaline earth elements or group 2 elements.
What element is NaI?
Yes,Na represents an element. It is the symbol for sodium.Its atomic number is 11.Na stands for sodium. It locates in the 3rd period because it has electrons in three different energy levels. It is an alkali metal as it has only one electron in outermost shell.Yes, Na is an element in the 1st group. It is an alkaline metal. It is highly reactive.
How can you use the period number and the group number on the periodic table to describe an element's atomic structure?
The period number helps in determining the number of shells in the element. For example, Sodium (Na) is in 3rd period that means there are 3 shells in the atom of an Sodium.
What is doping in extrinisc semiconductors?
3rd and 5th group elements
What element is the 3rd element?
lithium is the third element. It is placed in group-1
What element has three energy levels and properties of metals and nonmetals?
The element has 3 energy levels means that it is in the 3rd period. The only metalloid in the 3rd period is Si. It is in the 14th group.
What group is the element argon in?
The Noble(Inert) Gases.
Why 3rd and 5th group elements only are used in the manufacture of optoelectronic devices?
Well they are not. Silicon is used in solar panels - an optoelectronic device. What is true that the nature of the semiconductors made by reacting group 13 and group 15 (old school group III and group V) generically called the III/V semiconductors. Examples are Gallium nitride, gallium phosphide, gallium arsenide, indium phosphide. The key is the nature of the band gap and how this can be affected by doping. Gallium nitride is used in many applications, and is used with suitable doping in blu-ray disc reader laser diodes
What is the valency of the last element in the 3rd group of modern periodic table?
The valency is 3+
What information is given by the noble gas notation Ne 3s2?
The element is magnesium with an atomic number 12.The element belongs to the 3rd period, with two valence electrons in the s orbitals. The element is an example of alkaline earth elements or group 2 elements.
What element is NaI?
Yes,Na represents an element. It is the symbol for sodium.Its atomic number is 11.Na stands for sodium. It locates in the 3rd period because it has electrons in three different energy levels. It is an alkali metal as it has only one electron in outermost shell.Yes, Na is an element in the 1st group. It is an alkaline metal. It is highly reactive.
What element group does Aluminum fall under?
metalloidthe awesome metal group, that is the truth!
Do the element Na and K belong to the same period or the same group?
The elements K and Na belong to the same group i.e. 1 of the periodic table. However they are separately placed in 4th and 3rd periods respectively.
How can you use the period number and the group number on the periodic table to describe an element's atomic structure?
The period number helps in determining the number of shells in the element. For example, Sodium (Na) is in 3rd period that means there are 3 shells in the atom of an Sodium.
Why only 3rd and 5th group elements are used for doping of a semiconductor why not other group elements?
III and V group atoms are used for doping in column IV materials. III and V relate to the number of valence electrons that are available for bonding. Silicon, which is a column IV material, is usually in a bonding form with 4 other Si atoms. In this bonding scheme, valence electrons are shared and the "outer shell" of 8 electrons is complete. In doping, an atom replaces one of the Silicon atoms. A column V atom, such as Phosphorous, can replace a Silicon atom. The bonding will be the same, except that P will provide an extra electron to the system. With thermal energy, this electron can become disassociated with its original atom, thus ionizing the dopant and creating a free electron that can be used for conduction or other processes. In p-type doping, such as using Boron in Silicon, one of the bonds is not satisfied, since Boron only has 3 valence electrons. We call this absence of an electron a "hole". In compounds such as GaAs, we have a III-V compound. In this case, you can use a column IV material for doping. So, Silicon can be used as a dopant for a III-V compound. If Si replaces a Ga atom, then Si acts like a donor. If Si replaces a As atom, Si acts like an acceptor. People in the field can use other factors, such as pressure, to preferentially select which atoms Si will replace.
