newbie2k6

what is the differrence between positive ions and proton similarly negative ion and electron? how come oppositely charged ions produce electric field? what is the difference between magnetic and electric field?

According to Semicon Physics: "When two atoms come close to each other then their enegy levels will further split into closely spaced energy levels called Energy bands this due to to Pauli Exclusion Rule" Can anyon please explain this even though i am fully aware of all four quantum numbers

When pure semi conductor(intrinsic) is doped with trivalent elements, p type semi conductor is formed(in which the concentration of holes is greater than free electrons) and when pure semi conductor is doped with pentavalent elements,n type semi conductor is formed(in which the concentration of free electrons is greater than holes). Now My question is that which of these following condition is true about n-type and p-type semiconductors and Why?:hihi: 1.Concentration of holes in p-type = concentration of free electrons in n type 2.Concentration of holes in p-type < concentration of free electrons in n type 3.Concentration of holes in p-type > concentration of free electrons in n type

can anyone provide me links to some e-book site or references where i can D/W books related to the use of applied chemistry in Computer and information system i need them for my project anyone plz help. thank u

Hello, I want to ask u guys two questions Q.The two electrons in S-orbital acquires same energy or different energy and WHY? Q.What is the difference between Dalton's theory, Bohr's theory and Quantum theory Thanks

Hi guys. This is my first post, and I just had a question about chemistry.I m a new student of computer and information system and i want to ask u guys what is the importance of applied chemistry in computer and information system ?