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The most probable radius (in pm) to find the electron in He+ is

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Important Questions on Structure of Atom

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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 3
The De-Broglie wavelength associated with a ball of mass 1kg having kinetic energy 0.5 J is
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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 4
The inconsistencies in the velocities of two particles, A and B are 0.05 and 0.02 ms-1, respectively. The mass of B is five times that of the mass of A. What is the ratio of uncertainties in positions ΔxAΔxB?
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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 5
The de-Broglie wavelength of a helium atom at room temperature is
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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 6
n and ℓ for some electrons are given. Among the following, which is expected to have least energy?
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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 7
If the photon of wavelength 150 pm strikes an atom and one of its inner bound electron is ejected out with a velocity of 1.5×107 m/s, what is the energy with which it is bound to the nucleus?
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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 8
Smallest wavelength occurs for
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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 9
Which of the following statement is wrong for the Bohr's model?
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Alpha Question Bank for Medical: Chemistry>Chapter 2 - Structure of Atom>Exercise 4>Q 10
The ratio of the energy of a photon of wavelength 3000 A∘ and 6000 A∘ is