orbital

Electronic Configuration Rules | Chemistry Notes

Electronic Configuration: The distribution and arrangement of electrons in various shells, sub-shells and orbitals is called electronic configuration. Electronic configuration follows three rules. Auf Bau Principle: It states: “Electrons occupy shells in increasing order of their energies” or “Electrons occupy sub-shells in increasing order of their energies or n+ℓ values” First electrons fill the sub-shell with …

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Quantum Numbers Class 11 Chemistry Notes

Do you Know !! What is Quantum Number ? These are certain numbers which are used to locate electron in an atom or in other words these are address of electron. They are of four types out of which three are obtained by mathematical solution of Schrödinger wave equation.     4 Quantum Numbers (i)   Principal Quantum Number …

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Class 11 Chemistry Chapter 2 Important MCQ’s for Exams – Structure of Atom

Class 11 Chemistry Chapter 2 Structure of Atom Important MCQ’s for Exams: At infinity the energy difference between two Adjacent orbits becomes almost: 1.Increased 2.Decreased 3.Infinite 4. Zero Answer ) Zero Brief Explanation : The difference of energy between two consecutive orbits in an atom decreases with increase in their distance from the nucleus i.e. …

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