How to write the Orbital Diagram for Indium?
Indium (In) sits on the fence between stability and reactivity. Its outer shell isn’t completely full, containing one electron in the 5p subshell ([Kr] 4d¹⁰ 5s² 5p¹). This incomplete configuration, compared to noble gases with full outer shells, makes Indium more reactive. However, the filled 4d subshell provides some stability compared to elements with electrons in multiple incomplete subshells.
