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Chemistry, 20.05.2021 23:10 2024056

7)The mass of an electron is approximately equal to 1/1368 of the mass of A)a positron
B)a proton
C)an alpha particle
D)a beta particle

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7)The mass of an electron is approximately equal to 1/1368 of the mass of A)a positron
B)a pr...

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