Indicate if the following are the correct ground state electron configurations for the atom listed by selecting correct or incorrect.?

Cr: [Ar] 4s¹ 3d⁵ (correct)

Co³⁺: [Ar] 4s² 3d⁴ (incorrect)
The ground-state electronic configuration of Co is Co: [Ar] 4s² 3d⁷
In formation of Co³⁺ ion from Co atom, two 4s electrons are firstly lost followed by one 3s electron.
Therefore, the correct one is Co³⁺: [Ar] 4s⁰ 3d⁶

Fe: [Ar] 4s² 4d⁶ (incorrect)
The correct one is Fe: [Ar] 4s² 3d⁶

Cu⁺: [Ar] 4s² 3d⁸ (incorrect)
The ground-state electronic configuration of Cu is Cu: [Ar] 4s¹ 3d¹⁰
In formation of Cu⁺ ion from Cu atom, one 4s electron is lost.
Therefore, the correct one is Cu⁺: [Ar] 4s⁰ 3d¹⁰

Ti²⁺: [Ar] 4s⁰ 3d² (correct)

Pd: [Kr] 5s² 3f¹⁴ 4d⁸ (incorrect)
The correct one is Pd: [Kr] 4d¹⁰