1 answer. The element is gallium (Ga) with atomic number 31.
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The element with the electronic configuration (Ar)4s23d104p3 ( Ar ) 4 s 2 3 d 10 4 p 3 is arsenic. This is because Ar represents 18 atoms, 2 atoms are…
The electronic configuration of copper is `[Ar] 4s^(1) 3d^(10)` and not `[Ar] 4s^(2) 3d^(9)`.< /p>
Brom. (Ar) 3d10 4s2 4p5.
According to the Aufbau principle, the 4s orbital is lower in energy than the 3d orbital and is therefore filled first.
Re: chromium and copper
Therefore, an electron is removed from 4s2, giving Cr[Ar] 3d5 4s1. Same for Cu, it would be [Ar] 3d9 4s2 but again it would be more stable if the d shell was completely filled with 10 instead of 9 electrons. Therefore, an electron is removed from s, Cu makes it [Ar] 3d10 4s1.
This element is nickel and has atomic number 28.
Brom. (Ar) 3d10 4s2 4p5. 2P3/2.
Argon is the noble gas with 18 electrons. As a fully filled d shell, it is more stable in nature. Therefore an electron from the 4s shell goes into the d orbital to allow the copper atom to gain stability.
Here the electron configuration of germanium ion is (Ge2+) 1s2 2s2 2p 6 3s2 3p6 3d10 4s2. This electron configuration shows that the germanium ion (Ge2+) has four shells and the last shell has two electrons. In this case, the germanium ion (Ge2+) has a total of two valence electrons.
Consequently, according to the rules for filling the orbitals, the electronic configuration of iron is (for example) 1s2 2s2 2p6 3s2 3p6 4s2 3d6 and is abbreviated from [Ar] 4s2 3d6 .
You write 3d before the 4 because the 3d are not completely filled. It has unpaired electrons, so the energy level is lower than the fully filled 4s shell.
So if we look at the energy levels, the 3D orbital has a higher energy level than the 4s orbital. Therefore, electrons fill up in front of the 3D orbital in 4 seconds. The construction principle also describes this correctly.
This is something that falls under the “build up” principle. However, when electrons shift energy levels or are shared, the electrons of 4s are removed before 3d electrons because 4s is a lower energy level and therefore less energy is needed. This is probably the main reason why 4s is written before 3d.
Natural copper is a mixture of two stable isotopes: Copper-63 (69.15%) and Copper-65 (30.85%).
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