(solved)Question 3.25 of NCERT Class XI Chemistry Chapter 3

Would you expect the first ionization enthalpies for two isotopes of the same element to be the same or different? Justify your answer

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Parveen,

Question 3.25
NCERT Class XI Chemistry

Would you expect the first ionization enthalpies for two isotopes of the same element to be the same or different? Justify your answer

Solution in Detail
(video solution below this)

Ionization enthalpy is the energy required to remove an electron from the electrostatic attraction of the nucleus of an isolated gaseous atom in its ground state.

1. Isotopes of the same element have different atomic masses but the same number of electrons and protons.

2. Therefore, the electrostatic attraction between the nucleus and electrons is exactly the same in the isotopes.

Hence, the IE is same for all the different isotopes of the same element !

Video Explanation

Please watch this youtube video for a quick explanation of the solution:

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