Which of the following would you expect to be ionic?
a) co
b) h2o
c) so2
d) k2o
e) o2

Co

H20 somewhat ionic as well as covalent

SO2 is covalent

K2O is ionic

O2 ionic with somewhat covalent bonds

i believe it is c.) 1575 j.

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!

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~ trueboss72