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Chemistry, 07.09.2021 14:50 aefrain42

Atom R has a total of 58 elementary particles, in which the ratio of the number of neutrons to the mass number is 20/39. Give the number of particles of each type in R and the atomic symbol R?

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Atom R has a total of 58 elementary particles, in which the ratio of the number of neutrons to the m...

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