What happens when light passes from air to water

Because there is a different medium between water & air, the light, when passing from one medium to another, usually gets refracted. In the case of light passing from air to water, the water would seem to bend the light.

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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