Question

write electronic configuration of carbon atom

Answer 1

The carbon atom has atomic number 6 i.e. it has 6 protons so it must also have 6 electrons to be an atom.
Knowing that s-orbitals hold 2 electrons and p-orbitals hold 6 electrons (2 in each x, y, z oriented orbital) you can conclude that carbon has the electron configuration
1s2 2s2 sp2

Answer 2

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