Question

give the noble gas electron configuration of ti, element 22 using the box orbital method and the aufbau principle. shell numbers are listed at the bottom. noble gas (number)(box) (number)(box). 1 2 3 4 5 note that 2 and 4 require numbers whose letters are at the bottom.

Explanation:

Step1: Identify the noble - gas core

The noble - gas core for titanium (Ti, atomic number 22) is argon (Ar, atomic number 18). So the first part is [Ar].

Step2: Determine the remaining electrons

Ti has 22 electrons, and Ar has 18 electrons. So there are 22 - 18=4 remaining electrons to place in orbitals.

Step3: Place electrons in orbitals after the noble - gas core

According to the Aufbau principle, after the noble - gas core, the electrons go into the 4s and 3d orbitals. The 4s orbital fills first. The 4s orbital can hold 2 electrons, and then the remaining 2 electrons go into the 3d orbitals. The 4s orbital is represented as 4s$^2$ (2 electrons in the 4s orbital) and the 3d orbitals start to fill with 2 electrons. The electron - configuration in box - orbital notation: [Ar] 4s$^2$ 3d$^2$.

Answer:

[Ar] 4 s 3 d