missanitapeart missanitapeart

28-05-2021
Chemistry

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Help meee!! this is really confusing my brain

Help meee this is really confusing my brain class=

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Аноним Аноним

28-05-2021

Answer:

I believe it's (3)

Explanation:

same number of proton and electrons in both atoms A and atom B. but different number of neutron

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