What is the electron configuration for Ti (titanium)?A.[Ar]4s23d2B.[Ar]4s24p2C.[Ar]4s24d2D.[Ar]4s23p2SUBMITarrow_backPREVIOUS

To determine the electron configuration for titanium (Ti), we first need to know its atomic number, which is 22. This means titanium has 22 electrons that need to be arranged according to the principles of electron configuration.

Break Down the Problem

1. Identify the base configuration (noble gas core).
2. Account for all 22 electrons beyond the noble gas.

Relevant Concepts

1. The nearest noble gas before titanium is Argon (Ar), which has 18 electrons.
2. Electrons fill sublevels in the order dictated by the Aufbau principle, generally filling lower energy levels before higher ones.

Analysis and Detail

1. Starting from Argon $[Ar]$, we need to add 4 more electrons to account for the 22 total.
2. The next available energy sublevel is $4s$. We can fill this sublevel with 2 electrons.
   • After filling $4s$, we have used 2 of the remaining 4 available electrons (18 + 2 = 20).
3. The remaining 2 electrons will occupy the $3d$ sublevel.
   • Thus, $3d$ can hold 2 of the remaining electrons.

Verify and Summarize

Combining all the components together, the electron configuration for titanium becomes: $[Ar] 4s^2 3d^2$

Final Answer

The correct electron configuration for titanium $\text{Ti}$ is: A. $[Ar] 4s^2 3d^2$.