You are given a mixture of ions which may contain any four of the following ions : fe3+, cu2+, zn2+, mg2+, sr2+, and ni2+. based on your knowledge of qualitative analysis of ions, solubility and complex formation , devise a method to separate and identify the components of the unknown mixture.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

explanation:

a