Uranium, belonging to the periodic table's actinide elements, has long intrigued scientists due to its complex electron configurations ... electrons in its inner shells compared to other, more ...

Different shells can hold different maximum numbers of electrons. Electrons occupy shells starting with the innermost one. They begin to occupy the next shell when a shell becomes full.

it gains one electron to form a negative ion with a stable electronic configuration – a full outer shell. As we move down the column of Group 7 elements, their reactivity decreases. In each ...