write the electron configuration of an atom of the element highlighted in this outline of the periodic…

write the electron configuration of an atom of the element highlighted in this outline of the periodic table\nhint: you do not need to know the name or symbol of the highlighted element!

write the electron configuration of an atom of the element highlighted in this outline of the periodic table\nhint: you do not need to know the name or symbol of the highlighted element!

Answer

Explanation:

Step1: Identify the period

The element is in the 4th period, so the electron - configuration starts with the noble - gas core of the previous period. The noble gas before the 4th period is Ar, so we start with [Ar].

Step2: Determine the sub - shells

In the 4th period, the element is in the first column of the transition - metal block (d - block). After the [Ar] core, the next sub - shells are 4s and 3d. The 4s sub - shell fills before the 3d sub - shell. The 4s sub - shell can hold 2 electrons and the 3d sub - shell starts to fill. Since the element is in the first column of the d - block, there is 1 electron in the 3d sub - shell. The electron configuration is [Ar]4s²3d¹.

Answer:

[Ar]4s²3d¹