Argon has completely filled M shell (or 3p orbital)
4f
This is because the D-Block in the Periodic Table is where the d-Subshell is being filled up. Chromium's d-Subshell is being filled up and is therefore in the D-Block.
The period.
silver
p-block elements have partially filled p-subshell. It is not completely filled.
Argon is a noble gas and being as its highest energy level is completely filled there are no electrons available for bonding in argon.
The 4f subshell is being filled for the rare earth series of elements.
Argon, being one of the noble gases, has a completely filled outer electron shell and thus has zero valency.
Incandescent lights are typically filled with argon. Argon is also used to fill in double and triple pane windows.
Argon, being one of the noble gases, has a completely filled outer electron shell and thus has zero valency.
Ni2+, Goes from having 28 electrons to 30, giving it 10 electrons in its 3d subshell making that subshell full.
noble gases.