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PLEASE!!!!

How many protons, neutrons, and electrons does rubidium-87 contain? *

A) 87 protons, 85.5 neutrons, 87 electrons

B) 37 protons, 37 neutrons, 37 electrons

C) 37 protons, 87 neutrons, 37 electrons

D) 37 protons, 40 neutrons, 37 electrons

Respuesta :

The answer the comes closest to being correct would be answer choice D. the problem with it though is that it does not have the correct amout of neurtrons. It is called rubidium 87 therefor there must be 50 neurtrons if there are 37 electrons and protons 87-37=50, 50+37=87.
JWG19

it's d. taking the test and you have a typo. D should be 50 neutrons not 40

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