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Question : 9
Total: 26
Define ionization energy.
How would the ionization energy change when electron in hydrogen atom is replaced by a particle of mass 200 times that of the electron but having the same charge?
OR
Calculate the shortest wavelength of the spectral lines emitted in Balmer series.
[Given Rydberg constant,R = 10 7 m − 1
How would the ionization energy change when electron in hydrogen atom is replaced by a particle of mass 200 times that of the electron but having the same charge?
OR
Calculate the shortest wavelength of the spectral lines emitted in Balmer series.
[Given Rydberg constant,
Solution:
Definition
Formula
Calculation and Result
The minimum energy, required to free the electron from the ground state of the hydrogen atom, is known as Ionization Energy.
E 0 =
i . e . , . E 0 ∝ m
Therefore, Ionization Energy will become 200 times.
OR
Formula
Calculation and Result
= R (
−
)
For shortest wavelength,n = a
Therefore,
=
= ⇒ l =
= 4 × 10 − 7 m
Formula
Calculation and Result
The minimum energy, required to free the electron from the ground state of the hydrogen atom, is known as Ionization Energy.
Therefore, Ionization Energy will become 200 times.
OR
Formula
Calculation and Result
For shortest wavelength,
Therefore,
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