Which one of the following statements about orbital energies is incorrect? In th

Question

Which one of the following statements about orbital energies is incorrect?

In the hydrogen atom, the energy of an orbital depends only on the value of the quantume number n.

In many-electron atoms the energy of an orbital depends on both n and l.

Inner electrons shield outer electrons more effectively than do electrons in the same orbital.

The splitting of sublevels in many-electron atoms is explained in terms of the penetration effect.

The energy of a given orbital increases as the nublear charge Z increases.

Explanation / Answer

the incorrect statement is:
The splitting of sublevels in many-electron atoms is explained in terms of the penetration effect.
hence answer is:
The splitting of sublevels in many-electron atoms is explained in terms of the penetration effect.

energy depends on both n and l
since in Hydrogen, there is only 1 electron, energy depends only on n

E = -constant*Z^2/n^2

as Z increase, E increases

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