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Designate on an energy level diagram thee conduction and valence bands, acceptor & donor states and position of Fermi level for
(i) An intrinsic semiconductor.
(ii) A n-type semiconductor.
(iii) a p-type semiconductor.
chemical laws and their verification
Assume that we want to make buffer by dissolving in water some amount of the compound which we selected by the table as given below; After that adding either strong acid (f
what are magnetism in d block?
why wood doesnot sublimine ?
what are commercial cells?
GROUP 12: ZINC, CADMIUM, AND MERCURY Group 12 substance have the electron design ( n -1) d 10 ns 2 with n =4, 5 and 6 for Zn, Cd and Hg, respectively. They are formally pa
Why a covalent bond is directional? The covalent bond is formed as a result of pairing of two electrons in the atomic orbitals of two atoms. The bond then should lie along the
Direction of the shift of electron pair The direction of the shift of electron pair can be decided on the basis of subsequent points. (i) While the sets related to a multipl
An aqueous solution has a hydroxyl concentration of 1.75 x 10^-7mol/L. Find the concentration of hydrogen ions in this solution.
difference between organic & inorganic colloides ?
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