4) 3.Расположите и подпишите в атоме гелия ядро, 2 протона, 2 нейтрона, 2 электрона. дам 20 балов​
Please enter comments
Please enter your name.
Please enter the correct email address.
You must agree before submitting.

Answers & Comments


Copyright © 2025 SCHOLAR.TIPS - All rights reserved.