4. Which statement describes alpha| radiation?
(1) It has a mass of 1 and a charge of 1.
(2) It has a mass of O and a charge of -1.
(3) It has a mass of O and a charge of 0.
(4) It has a mass of 4 and a charge of +2

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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