A metal in group 17 of the periodic table can become a chemically stable ion by A. losing one electron. B. gaining one electron. C. gaining two electrons. D. losing two electrons.

A. losing one electron

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Explanation:

wavelegth as in spectrum red oygbiv

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

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