Kilogram(kg)
It's not the SI unit of mass in the metric system however.
Explanation:
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Explanation:
1. Mass of the proton, 
Wavelength, 
We need to find the potential difference. The relationship between potential difference and wavelength is given by :



V = 45.83 volts
2. Mass of the electron, 
Wavelength, 
We need to find the potential difference. The relationship between potential difference and wavelength is given by :




V = 84109.27 volt
Hence, this is the required solution.
Answer:
the answer if im not mistaken is A
Hope this helps:)