Question

For ${O_2}$ and ${N_2}$ write the electronic configuration.

Answer 1

We have to know that, the greatest number of electrons that can be obliged in a shell depends on the central quantum number $\left( n \right)$. It is addressed by the recipe $2{n^2}$, where ‘ $n$ ‘ is the shell number.

Complete answer:
We have to know that the electron arrangement of a component portrays how electrons are appropriated in its nuclear orbitals. Electron setups of iotas observe a standard documentation where all electron-containing nuclear subshells (with the quantity of electrons they hold written in superscript) are put in an arrangement.
Nonetheless, the standard documentation frequently yields long electron designs (particularly for components having a generally huge nuclear number). In such cases, a shortened or consolidated documentation might be utilized rather than the standard documentation. In the contracted documentation, the arrangement of totally filled subshells that compare to the electronic design of a respectable gas is supplanted with the image of that honorable gas in square sections.
Electron Configurations are helpful for:
Deciding the valency of a component.
Anticipating the properties of a gathering of (components with comparable electron setups will in general show comparative properties).
Deciphering nuclear spectra.
Therefore, the electronic configuration of oxygen ${O_2}$ is $\sigma 1{s^2}{\sigma ^*}1{s^2}\sigma 2{s^2}{\sigma ^*}2{s^2}\sigma 2p_z^2\pi 2p_x^2\pi 2p_y^2{\pi ^*}2p_x^1{\pi ^*}2p_y^1$
The electronic configuration of nitrogen ${N_2}$ is $\sigma 1{s^2}{\sigma ^*}1{s^2}\sigma 2{s^2}{\sigma ^*}2{s^2}\pi 2p_x^2\pi 2p_y^2\sigma 2p_z^2$ .

Note:
We have to know that the electron setup of a particle is composed with the assistance of subshell names. These labels contain the shell number (given by the essential quantum number), the subshell name (given by the azimuthal quantum number) and the all-out number of electrons in the subshell in superscript.