4) um ion x-¹ tem 18 eletrons e 20 neutrons. Portanto, o elemento X tem:

a) numero atomico 17.
b) 18 protons.
c) 19 eletrons
d) 19 neutrons
e) numero de massa 38
Please enter comments
Please enter your name.
Please enter the correct email address.
You must agree before submitting.

Lista de comentários


Helpful Social

Copyright © 2024 ELIBRARY.TIPS - All rights reserved.