im pretty sute the answer would be number 4.
mark brainliest :)
1.422 × 10^11 us liquid gallons
Central "carbon" atom
2 oxygen atoms
held together by "covalent" bonds
has a "1s2 2s2 2px1 2py1 2pz0" electron
geometry
carbon atom is "sp" hybridized
I think the answer might be nuclear physics