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Chemistry Structure of Atom Dual Nature of Electron Single Correct MCQ
Published on: August 13, 2026

A single electron atom has nuclear charge +Ze where Z is atomic number and e is electronic charge. It requires 42.7 eV to excite the electron from the second Bohr orbit to third Bohr orbit. Find

A
The atomic number of element.
B
The energy required for transition of electron from third to fourth orbit.
C
The wavelength required to remove electron from first Bohr orbit to infinity.
D
The kinetic energy of electron in first Bohr orbit.

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5 23.9 × 10 –19 J

36.5 Å 5.45 × 10 –10 erg

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