Based on its location in the periodic table, what can most likely be predicted about phosphorus?
it has three valence electrons available for bonding.
it has three nonbonding electrons.
it has five valence electrons available for bonding.
it has five nonbonding electrons.

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