Question

What is the electron configuration of $A{u^ + }$ ?

Answer 1

We have to see that, in quantum science, the electron setup is the dispersion of electrons of a particle or atom in nuclear or sub-atomic orbitals. Electronic arrangements portray every electron moving freely in an orbital, in a normal field made by any remaining orbitals. Numerically, arrangements are portrayed by Slater determinants or setup state capacities.

Complete answer:
We have to know that, as indicated by the laws of quantum mechanics, for frameworks with only one electron, a degree of energy is related with every electron arrangement and in specific conditions, electrons can move starting with one setup then onto the next by the discharge or ingestion of a quantum of energy, as a photon.
Information on the electron arrangement of various iotas is helpful in understanding the design of the occasional table of components. This is additionally helpful for portraying the compound bonds that hold iotas together. In mass materials, this equivalent thought clarifies the particular properties of lasers and semiconductors.
Electron arrangement was first considered under the Bohr model of the particle, and it is still entirely expected to discuss shells and subshells notwithstanding the advances in comprehension of the quantum-mechanical nature of electrons.
Therefore, the atomic number of gold is $Au$ is $79$ . The atomic number of $A{u^ + }$ is $78$ .
Hence, the complete electronic configuration of gold is given below,
$1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^2}3{d^{10}}4{p^6}5{s^2}4{d^{10}}5{p^6}6{s^1}4{f^{14}}5{d^{10}}$
The noble gas electronic configuration of gold is given below,
$\left[ {Xe} \right]6{s^1}4{f^{14}}5{d^{10}}$
Then, one electron is less in $A{u^ + }$ . So that one electron less in the above electronic configuration of gold.
$\left[ {Xe} \right]4{f^{14}}5{d^{10}}$ .

Note:
Noble gas arrangement is the electron setup of respectable gases. The premise of all compound responses is the inclination of substance components to obtain dependability. Fundamental gathering atoms by and large arrive at an honorable gas setup in an atom, complying with the octet.