Which inference is supported by evidence in the graph

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

sry but any answer choices

ill try to . no promises tho.

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.

that's it!

if you need further assistance, let me know: )

~ trueboss72