This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
UERJ's Chemistry Institute. en It's UERJ's Chemistry Institute pt Instituto de Qumica da UERJ Davidson Lima Davidson Lima Cczero State University of Rio de Janeiro
Page 2023 Free-images.com. All images are Public Domain