Chemistry, 19.07.2019 21:00 nina1390

Um átomo x possui 8 neutrons e seu número atômico e igual a 8. sabendo que esse atomo é isótopos de y, que possui número de massa 18, responda: qual o numero de nêutrons do atomo y ?

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Um átomo x possui 8 neutrons e seu número atômico e igual a 8. sabendo que esse atomo é isótopos de...

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