Question 5 a +3 cation of a certain transition metal has three electrons in its outermost d subshell. which transition metal could this be? shade all the possibilities in the periodic table outline below.

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.