nikitanicole95 nikitanicole95

23-06-2021
Chemistry

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an atom has 31 electrons 39 neutrons and 31 protons. it follows that its mass number is

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CapnJackSparrow CapnJackSparrow

23-06-2021

Answer:

mass no = 70 amu

mass no = neutrons+ protons

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Explanation:

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