🤓 Based on our data, we think this question is relevant for Professor Driessen's class at UMN.
We’re being asked to determine which ions have noble gas electron configurations.
For this, we shall do the following:
Step 1: Find the number of electrons in the ions.
Step 2: Check the number of electrons against the noble gases in the periodic table.
The noble gases in the periodic table are:
Which of the following ions have noble gas electron configurations?
a. Fe2+, Fe3+, Sc3+, Co3+
b. Tl+, Te2—, Cr 3+
c. Pu4+, Ce4+, Ti4+
d. Ba2+, Pt2+, Mn2+