What is the energy required to excite an electron from ground state to the second orbit in a h atom?
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Explanation:
If an electron is in the first energy level, it must have exactly -13.6 eV of energy. If it is in the second energy level, it must have -3.4 eV of energy. An electron in a hydrogen atom cannot have -9 eV, -8 eV or any other value in between.
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energy in 1st orbitals = -13.6/n^2(where n is number of orbitals ) = -13.6/1 = -13.6
energy in 2nd orbitals of electron =
-13.6/4 = -3.4
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