Evaluate the process of forming a cation from magnesium.

Magnesium loses two electrons from its outer shell, achieving a configuration similar to neon.

Magnesium loses one electron to fill its s subshell, achieving a configuration similar to neon.

Magnesium gains one electron to fill its s subshell, achieving a configuration similar to neon.

Magnesium gains two electrons to fill its p subshell, achieving a configuration similar to neon.