Chlorine forms the chlorine ion to bond with many metals. To become a chloride ion with a -1 charge, a chlorine atom must
A. Gain one proton
B. Lose one proton
C. Gain one electon
D. Lose one electron
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Ответ:
Frequency is simply the reciprocal of the period.
Frequency= 1 / (3sec) = 1/3 per sec = 1/3 Hz.