February 2019 0 7 Report
Pewien pierwiastk ma o 2 neutrony więcej od protonow. A wszystkich cząstek elementralnych ma 17. Napisz symbol tego izotopu

Life Enjoy

" Life is not a problem to be solved but a reality to be experienced! "

Get in touch

Social

© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.