The elements with atomic numbers (Z) equal to 107 and 109 have been made recently. The element Z = 108 has not been made. Indicate the groups in which the above elements can be placed .

1. Element with atomic number 107 is Bohrium. It's electronic configuration is [Rn]5f^​146d⁵7s². It belongs to Group 25.

2. ​Element with atomic number 108 is Hassium. It's electronic configuration is [Rn]5f^​146d⁶7s². It belongs to Group 26.

3. ​Element with atomic number 109 is Meitnerium. It's electronic configuration is [Rn]5f^​146d⁷7s². It belongs to Group 27.