Describe el porcentaje de gases perjudiciales al ambiente Monóxido de carbono (CO)

-Dióxido de azufre (SO2)

-Óxidos de nitrógeno (N2O)

-Ozono (O3)

-Benceno (C6H6)

-Sulfuro de hidrógeno (H2S)

-Fluoruro de hidrógeno (HF)

i know insulin is primary but i dont know the others im sorry

explanation:

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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