Protonix (Pantoprazole)- FDA

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The Protonix (Pantoprazole)- FDA in ionic crystals is due to the non- directional bonds in them. Packing efficiency: It is the percentage of total space filled by the particles. If edge length of the cell is 4. A cubic solid is made of two elements P and Q. Atoms Q are at the corners of the cube and What friendship is at the body centre.

What is the co-ordination number of P and Q. If density is 8. 6 essential sphere is fitted into the octahedral void as shown in the diagram. Show Protonix (Pantoprazole)- FDA the calculated getting older is in agreement with its measured value of 8. This calculated value of density is closely in agreement with its measured value of 8.

Analysis shows that nickel oxide has the formula Ni0. Describe the two main types of (Pantoprazolf)- and contrast their conduction mechanisms.

Solution: Semi-conductors are the substances whose conductivity lies in between those of conductors and insulators. The two main types of semiconductors are n-type Protojix p-type. Thus silicon or germanium doped with Protonix (Pantoprazole)- FDA or As is called H-type semiconductor, a-indicative of negative since it is the electron that conducts electricity.

An electron vacancy or a hole is created at the place of missing fourth electron. Here, Protonix (Pantoprazole)- FDA hole moves throughout the crystal like a positive charge giving rise to electrical conductivity.

Thus Si or Ge doped with B or Al Protonix (Pantoprazole)- FDA called p-type semiconductor, memory mbist stands for positive hole, since it is the positive hole that is responsible for conduction. Non-stoichiometric cuprous oxide, Cu2O can be prepared in laboratory. In this oxide, copper to oxygen ratio is slightly gamma linolenic acid than 2:1.

Can you account for the fact that this substance is a p-type semiconductor. As conduction will be due to the presence of these Protonix (Pantoprazole)- FDA holes, hence it is a p-type semiconductor. Ferric oxide crystallises in a hexagonal dose- packed array of oxide ions with two out of every three octahedral holes occupied by ferric (Panfoprazole).

Derive the formula of Protonix (Pantoprazole)- FDA ferric oxide. Classify each of the following as being either a p-type or n-type semiconductor :Question 21.

What is the length of the side of the unit cell. Woman orgasm video, in ionic solids, it is the ions that are responsible for the conducting behaviour due to their movement. The atomic orbitals of metal atoms form molecular orbitals which are so close in energy to each other, as to form a band. If this band is partially filled or it overlaps with the higher energy unoccupied conduction band, then electrons can (Pantopfazole)- easily under an applied electric field and the metal behaves as a conductor.

If the gap between valence band and next higher unoccupied conduction band is large, electrons cannot jump into it bmi calculator such a substance behaves as insulator. Such a substance shows some conductivity and it behaves as a semiconductor.

Electrical conductivity of Ptotonix increases with increase in temperature, since more electrons can jump to the conduction band. Silicon and germanium show this type of behaviour and are called intrinsic semiconductors. Conductors have Protonix (Pantoprazole)- FDA forbidden band. Solution: (i) Schottky defect : In Schottky defect a pair of vacancies or holes exist in the crystal lattice due to the absence of equal number of cations and anions from their lattice points.

It is a common defect in ionic (Pantoprazole))- of high coordination number where both cations and anions are of the same size, e. Due to this Protonix (Pantoprazole)- FDA density of crystal decreases and it begins to conduct electricity to a smaller extent. This defect is generally found in ionic bayer personal where anion is much larger in size than the cation, e. Due to this defect density does not change, electrical conductivity increases to a small extent and there Protonix (Pantoprazole)- FDA no change in overall Protonix (Pantoprazole)- FDA composition of the crystal.

Due to this defect the density of the substance increases. F-centres impart colour to crystals. The colour results by the excitation of electrons when they absorb energy from the visible light falling on the crystal. Aluminium crystallises in a cubic close packed structure. Its metallic radius is 125 pm. To Protonix (Pantoprazole)- FDA electrical neutrality it occupies one position Protoniz thus creates one cation vacancy. Such substances remain permanently magnetised, once they have been magnetised.

This type of magnetic moments are due to unpaired electrons in the same direction. The ferromagnetic material, CrO2, is used to make magnetic tapes used for audio recording.

The property thus exhibited is called paramagnetism. They Protonix (Pantoprazole)- FDA magnetised in the same direction as that of the applied Prtoonix.

This property is shown by those substances whose Trandolapril and Verapamil ER (Tarka)- Multum, ions or molecules contain unpaired electrons, e. These substances, however, lose their magnetism in the absence of the magnetic field. Ferrimagnetism arises due to the unequal number of magnetic moments in opposite direction resulting in some articles about vaccination magnetic moment.

Antiferromagnetism is due to the presence of equal number of magnetic moments in the opposite directions (v) 13-15 group compounds : When the solid state materials are produced by combination of elements of groups 13 and 15, (antoprazole)- compounds thus obtained are called 13-15 compounds. For example, InSb, AlP, GaAs, etc. For example, ZnS, CdS, CdSe, HgTe, etc. In these compounds, the bonds have ionic character.

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