Question 1.Which statement is generally true regarding atornic radius?" A. It remains constant within a period,
O B. It decreases from top to bottom within a group.
O C. It increases from left to right across a period.
D. It decreases from left to right across a period

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

catya your not at all which answer i've seen you do this on another question!