Question

In which of the following, carbon atoms have sextet electrons?
A. $:C{H_2}$
B. $.C{H_3}$
C. $C{H_4}$
D. $:C{H_3}$

Answer 1

We will discuss the electronic configuration. We will then write about the sextet electronic configuration and then will find out which of the above carbon compounds is having sextet electrons. When the number of electrons in the valence shell of the element or the atom gets equal to the number six then it is called a sextet of electrons. So sextet configuration refers to the configuration which possesses six electrons in its valence shell.

Complete step by step answer:
In quantum chemistry, electronic shape is the nation of movement of electrons in an electrostatic discipline created via stationary nuclei. The time period encompasses each of the wave functions of the electrons and the energies related to them. Electronic structure is obtained by using fixing quantum mechanical equations for the aforementioned clamped-nuclei problem.
A "sextet" atom has a loss of electrons and is eager to get 2 extra valence electrons to fill its octet. By a Lewis acid-base response (between ether and BF3) or lone-pair donation from a neighbouring atom (the mesomeric systems of the 2 carbocations), any other bond with 2 electrons to the sextet atom is made and its octet is completed.
In a detail of a compound, while the number of electrons inside the valence shell is identical to 6, it's far known as a sextet of electrons.

Hence the option A is the correct one.

Additional Information:
Electronic configuration issues stand up from the Born–Oppenheimer approximation. Along with thermo dynamics, the electronic configuration problem is one of the two steps in studying the quantum motion of a molecular. Except for a small wide variety of simple issues including hydrogen-like atoms, the solution of structure problems requires electronic configuration.

Note: Electronic configuration trouble is solved with quantum chemistry. Electronic structure calculations rank among the most computationally in-depth responsibilities in all clinical calculations. . The electronic configuration is the structure or the arrangement of the electrons in the shells or the orbitals in which the electrons exist.