Copper electron layer arrangement at 1 and 2 valence

Extranuclear electron configuration of copper atoms.

Yes: 2 electrons in the first layer, 8 electrons in the second layer, 18 electrons in the third layer, and 1 electron in the fourth layer, for a total of 29 electrons. The fourth shell has the highest energy of one electron, so whenever it encounters an oxidizing agent of moderate intensity (such as ferric ions), this electron will be taken away and positive one will be formed.

valence of copper ions.

The positive monovalent copper ion nuclear extranuclear electron arrangement is 2 electrons in the first shell, 8 electrons in the second shell, and 18 electrons in the third (outermost) shell.

Note that the atomic number.

After 18 years, the extranuclear electron configuration of the element atom will become more complicated, and it cannot be explained by the simple law taught in middle school chemistry. For example, how can the outermost front chain of the above monovalent copper ion be 18 electrons? Isn't that more than 8?

This is a question that will be discussed in university chemistry.

First of all, copper is a subgroup element, and the structure is relatively complex, which may not be applicable to the main group element, and is generally not required in high school.

Secondly, the approximate principle of copper valence is as follows:

1) The valence electron layer of copper is 3D104S1, first of all, Cu+ is D10 configuration, and Cu2+ is D9 configuration, so Cu+ is more stable in high temperature and dry state than Cu2+. Divalent copper compounds are transformed into monovalent compounds when heated.

2) However, in the wet state, due to the strong polarization of Cu2+, the +2 valent copper ion will synthesize the Cu[H2O]4 divalent cation in water, so its hydration energy is very large, so the divalent copper can be stable in the solution, and this ion is more stable than the 1-valent copper ion. (Cu+ is coordinated with empty S and P orbitals, while Cu2+ forms an elongated octahedral or planar square with four short and two long ligands, and is therefore more stable in some solvents (water, liquid ammonia, etc.).

This is why cuprous oxide Cu2O in solid states can be seen, but 1-valent copper ions are not seen in solution.

Hope it helps.

Extranuclear electron configuration of copper atoms.

Yes: 2 electrons in the first shell, 8 electrons in the second shell, 18 electrons in the third shell, and 1 electron in the fourth shell, for a total of 29 electrons. The energy of one electron in the fourth layer is the highest, so whenever it encounters an oxidizing agent of moderate intensity (such as ferric ions), this electron will be taken away, and positive one will be formed.

Copper ions at the valence of wax loss.

The electron configuration outside the positive monovalent copper ion nucleus is 2 electrons in the first shell, 8 electrons in the second shell, and 18 electrons in the third (outermost) shell.

Note that the atomic number.

After 18 years, the law of electron configuration outside the nucleus of the element atom will become complicated, and it cannot be explained by the simple law taught in middle school chemistry. For example, how can the outermost shell of the above monovalent copper ion be 18 electrons? Isn't that more than 8?

This is a question that will be discussed in university chemistry.