Question

Energy required for the excitation of carbon atom is

Answer 1

Answer:

Ab initio hybridisation is a concept taught in schools to help understand how carbon with its one s- and three p-orbitals can achieve a tetrahedral environment. As part of this process, it is required to formally excite an electron.

Formally is the key word here. The entire process is a formal process that has practically nothing to do with real-life atoms (especially because these real-life atoms rather rarely end up in a vacuum without anything around them as the theory assumes). Thus, in real life this formal energy is not needed.

Answer 2

Answer:

The energy required for the excitation of C atom is $$\Delta E = hcRZ^2 (\frac {1}{n_1^2} - \frac {1}{n_2^2})$$.