Effective Nuclear Charge Z* Ranking for Valence Electron in Aluminum and Chlorine Atoms

How can we rank the effective nuclear charge Z* experienced by a valence electron in aluminum and chlorine atoms?

Rank the effective nuclear charge Z* experienced by a valence electron in each of these atoms: atom L' experienced by a valence electron. An atom of aluminum. An atom of chlorine.

Ranking of Effective Nuclear Charge Z*

The effective nuclear charge Z* experienced by a valence electron in each of these atoms can be ranked as follows: Chlorine > Aluminum.

To rank the effective nuclear charge Z* experienced by a valence electron in each of these atoms, we need to consider the number of protons in the nucleus and the shielding effect of inner electrons.

Aluminum is in Group 13 and has 13 protons in its nucleus. The valence electron in aluminum experiences a net positive charge of +13 due to the attraction of the nucleus. However, the effective nuclear charge experienced by a valence electron in aluminum is less than that in chlorine.

Chlorine is in Group 17 and has 17 protons in its nucleus. The valence electron in chlorine experiences a net positive charge of +17 due to the attraction of the nucleus. The effective nuclear charge experienced by a valence electron in chlorine is greater than that in aluminum.

Therefore, the ranking of the effective nuclear charge Z* experienced by a valence electron in each of these atoms is as follows: Chlorine > Aluminum.