Oxygen has 6 valence electrons, so B
Mass is the physical property of matter can be expressed numerically in SI units.
Answer:Frequency (hz) is some sort of vibration occurs during a particular period of time as either in a sound waves or in an electromagnetic field. Given below an online frequency of light with wavelength calculator to convert from wavelength to hz. Wavelength (λ) is the distance between two waves of energy traveling from one point to another point.
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we need the model to answer
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