Ответ:
The image shows Bohr models of atoms. To determine the period and group of an element from its Bohr model, we look at the number of electron shells and the number of valence electrons, respectively. However, without the actual atomic models filled with electrons, it is impossible to provide a specific period and group. The provided image only contains placeholders for these models and the accompanying text. Therefore, a definitive answer cannot be given based solely on the provided information.
