AMANOV R.A. Formation Of Concepts About the Periodic Law and the Structure of the Electronic Shells of Atoms of Elements. Eurasian Journal of Learning and Academic Teaching, [S. l.], v. 16, p. 17–22, 2023. Disponível em: https://geniusjournals.org/index.php/ejlat/article/view/3094. Acesso em: 6 nov. 2024.