If you wanted to find a sample of fermium, which has and atomic number of 100, where would you look? a
Deep within the Earth
b
In the Earth's atmosphere
c
In outer space
d
in a science lab

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