Diagonal relationship of lithium and magnesium by Aastha Pareek

In this video Dr. Aastha pareek, Biyani Groups of colleges, Jaipur, explains the Disgonal relationship is some properties of lithium are different to own group i.e group first but it resembles with the magnesium which is belong the group second . www.gurukpo.com, www.biyanicolleges.org