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Question

Which of the following have highest energy of electron?
  1. 1H1
  2. 1H2
  3. 1H3
  4. All have equal energy

A
1H3
B
1H1
C
1H2
D
All have equal energy
Solution
Verified by Toppr

In a nut shell, you have this thumb rule : Greater the mass of hydrogen isotopes, lesser will be the orbital radius of the corresponding electron more will be it's +I character, and lesser will be its energy.
Thus, least mass will be that of protium and so the electron in protium will be most energetic.

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Similar Questions
Q1
The correct order of wavelength of hydrogen (1H1), Deuterium (1H2), and Tritium(1H3) moving with same kinetic energy is:

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Q2
The atomic masses of the hydrogen isotopes are
m1H1=1.007825 amu
m1H2=2.014102 amu
m1H3=3.016049 amu
The energy released in the reaction
1H2+1H21H3+1H1
is nearly:
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Q3
A star has 1040 deuterons. It produces energy via the process
1H2+1H21H3+1H1
1H2+1H32He4+0n1
If the average power radiated by the star is 1016 W, then the deuteron supply of the star is exhausted in a time of the order of :
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Q4
The energy released in the reaction 1H2+1H32He4+0n1 is –––––––
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mass of 1H2=2.01410amu
mass of 1H3=3.0160amu
mass of 2He4=4.0026amu
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Q5
Which of the following have highest energy of electron?
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