A neutral carbon doesn't lack any electrons. It has exactly the same number of electrons as it has neutrons.
However, it has four electrons in its outer shell in comparison with eight electrons for a noble gas.
In that sense, it needs four electrons to complete its second shell.<span />
'The Sedimentary rock formed from years of sediments piling on top of it and being compressed.'
The answer is carbon dioxide
0.7 my teacher just gave me the answer i got too lazy to explain why