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The velocity of an electron in the second Bohr orbit of an atom of an element is 1.1×106m sec-1. Its velocity in the third orbit is_____.

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Important Questions on Structure of Atom

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Alpha Question Bank for Engineering: Chemistry>Chapter 2 - Structure of Atom>Exercise-4>Q 60
The sum of all the quantum numbers of hydrogen atom is
 
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Alpha Question Bank for Engineering: Chemistry>Chapter 2 - Structure of Atom>Exercise-4>Q 61
The wavelength of a moving body of mass 0.1mg is 3.31×10-29m. The kinetic energy of the body in kJ would be
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Alpha Question Bank for Engineering: Chemistry>Chapter 2 - Structure of Atom>Exercise-4>Q 62
If the radius of the first Bohr orbit is r, then the de Broglie wavelength in the third Bohr orbit is:
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Alpha Question Bank for Engineering: Chemistry>Chapter 2 - Structure of Atom>Exercise-4>Q 64
The number of unpaired electrons in Ni2+is
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Alpha Question Bank for Engineering: Chemistry>Chapter 2 - Structure of Atom>Exercise-4>Q 65

The electronic level which allows the hydrogen atom to absorb, but not emit a photon is:

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Alpha Question Bank for Engineering: Chemistry>Chapter 2 - Structure of Atom>Exercise-4>Q 67
4s orbital has lesser energy than 3d orbital because it has_____.
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Alpha Question Bank for Engineering: Chemistry>Chapter 2 - Structure of Atom>Exercise-4>Q 68
The magnetic moment of a divalent ion of an element with atomic number 24 in an aqueous solution is
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Alpha Question Bank for Engineering: Chemistry>Chapter 2 - Structure of Atom>Exercise-4>Q 70
The set of quantum numbers that cannot be allotted to an electron in an atom is