write the condensed (noble - gas) electron configuration of copper. for multi - digit superscripts or…

Explanation:

Step1: Identify noble - gas before copper

The noble - gas before copper (Cu, atomic number 29) is argon (Ar, atomic number 18).

Step2: Determine remaining electrons

Copper has 29 electrons. Argon has 18 electrons. So, there are (29 - 18=11) remaining electrons.

Step3: Write electron configuration of remaining electrons

The electron configuration of the remaining 11 electrons is (3d^{10}4s^{1}) (due to the stability of the half - filled and fully - filled subshells, copper has a (3d^{10}4s^{1}) configuration instead of (3d^{9}4s^{2})).

Step4: Write condensed electron configuration

The condensed (noble - gas) electron configuration is ([Ar]3d^{10}4s^{1}).

Answer:

([Ar]3d^{10}4s^{1})