Question

write short note : position of isotopes in mendeleev or modern periodic table

Answer 1

Image result for position of isotopes in mendeleev and modern periodic table

Position of isotopes: Isotopes have the same atomic number, similar chemical properties but different atomic masses. Based on the periodic law, an isotope is an element, which must have a separate place in the periodic table. ... Mendeleev could not arrange their property in the fixed position.Feb 1, 2017