Question

Carbon has four valence electrons and oxygen has six valence electrons. If carbon and oxygen bond covalently, which of the following is the correct Lewis dot (electron dot) structure for carbon dioxide?
help plz!

Answer 1

second

Answer 2

can u plz explain me why ?

Answer 3

carbon has valency of four electrons so third and fourth are eliminated.
if you count total electrons around each oxygen (must include two electrons of each bond) atom you find it to contain 10electrons violating octave rule.

Answer 4

In that octet of every atom is complete..