Explain why the valence electrons in $H e$ can be found at the same peak and therefore the same ionization energy.

The electrons in the

1 s

orbital are identical and cannot be distinguished in PES.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

The electrons are moving too quickly to distinguish on PES.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

The electrons are too small to distinguish on PES.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

PES is not refined enough to separate electrons in different energy level.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B The electrons in the $1 s$ orbital are identical and cannot be distinguished in PES.
The electrons in He are of the same orbital. There is no difference between them. So they can be found at the same peak and cannot be distinguished in Potential Energy Surface. (PES)

Suggest Corrections

Similar questions

Two electrons occupying the same orbital are distinguished by

Q. Two electrons occupying an orbital are distinguished by:

Q. Given the PES from the previous question, explain why the ionization energy for the valence electrons of

N e

is higher than that of

A r

Compute the typical de Broglie wavelength of an electron in a metal at 27 ºC and compare it with the mean separation between two electrons in a metal which is given to be about 2 × 10⁻¹⁰m.

[Note: Exercises 11.35 and 11.36 reveal that while the wave-packets associated with gaseous molecules under ordinary conditions are non-overlapping, the electron wave-packets in a metal strongly overlap with one another. This suggests that whereas molecules in an ordinary gas can be distinguished apart, electrons in a metal cannot be distinguished apart from one another. This indistinguishibility has many fundamental implications which you will explore in more advanced Physics courses.]

Q. Electrons are speed throughout the atom on different levels and subshells. The electron configuration for calcium is:

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2}

According to this configuration, how many electrons are found on the valence level?

Join BYJU'S Learning Program

Explain why the valence electrons in He can be found at the same peak and therefore the same ionization energy.

The correct option is B The electrons in the 1s orbital are identical and cannot be distinguished in PES.The electrons in He are of the same orbital. There is no difference between them. So they can be found at the same peak and cannot be distinguished in Potential Energy Surface. (PES)

Explain why the valence electrons in $H e$ can be found at the same peak and therefore the same ionization energy.

The correct option is B The electrons in the $1 s$ orbital are identical and cannot be distinguished in PES.
The electrons in He are of the same orbital. There is no difference between them. So they can be found at the same peak and cannot be distinguished in Potential Energy Surface. (PES)