Mark brainiest

when you walk outside, the bright sunlight can cause you to quickly shut your eyes. what is the sunlight?
need a hint?

a)
an external stimulus

b)
an internal stimulus

c)
an impulse

d)
an overdose

I think it might be an external stimulus.

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